You will be bothered by social and bureau systems which runs opposite of what you are seeing in US. Those who have not been to US think you have minted money and they expect you to spend it lavishly ( must have a Pajero). I do not think it is a good idea to go Nepal when you are on prime age unless you have special plan and it is hard to spent time doing nothing except gossiping.
Where were your children born in Nepal or USA? If they were born in US you know the pain of raising them. Your children will book you up for raising grand children and there are lot of benefits to your grand children as well yourselves.

Good for you! You can live a socialite life in Nepal. You could mentor young people or just enjoy your life. I don't believe that everyone should do a typical job or work. If that is the case, the world would be a chaos with 7 billion people running around.

I used to think same not until too long ago. But in recent days, I feel like , I only want to go there for few months a year , like no more then 3 months a year. Few things come into mind both positive and negative.

1) I felt like after living in US for probably 25/30 years, most people don’t have much of friends and family left in Nepal. People in nepal move on, we are stuck with imaginations of old relationships.
2) Political and bureaucratic systems is still miserable in every way. If you keep profile relatively simple then it may not be issue. Complex investment profile, business , tax , real estate, anything that you will have to deal with nepals court/legal system and burocracy is miserable. It may not be issue if you know right people at right place . But for commoner it’s miserable .
3) It’s very difficult to do financial transactions between nepal and US. It will be very hard for your kids to bring their inheritance back to US, if there is any. I would recommend not to invest in Nepal, if moving for retirement and your kids will be here.
4) Health care is still pretty bad and risky, big cities are mostly polluted and real estate cost is way too much considering quay of life there.
5) Not much of quality food joints and freedom for night life ( may be personal choices)
6) labor is cheap so maid services , driver , long term care help is easy to arrange .
7) still can create social bonding and relationships fairly easily
8) living cost and day to day cost is cheap and don’t have to probably do day job
9) Might end up distanced with kids and grand kids, don’t expect to live in nepal for 15 yrs and come back to US to have bonding with grand kids/kids
10) If you have good social / family circle , decent income stream , and some connections to navigate burocracy , life can be pretty chill in nepal without having to do day job.

Overall at this point in time, I don’t think it’s worth full time retirement in Nepal. I would probably rent an appartment for few month a year and live there and come back and do some low stress physically active job in US, if money is not much of issue . But things might change in 5/6 years.

Whether it is a good idea for immigrated Nepalese to go back to Nepal for retirement depends on various factors, including personal preferences and individual circumstances. For some Nepalese immigrants, retiring in Nepal can be an attractive option as it may offer the opportunity to reconnect with family, friends, and the culture and traditions of their home country. It may also provide a lower cost of living compared to their adopted country.

However, there are also potential challenges that immigrants may face when returning to Nepal for retirement. These challenges can include the need to readjust to a different way of life, language barriers, and cultural differences. Additionally, while Nepal has made significant progress in areas such as healthcare and infrastructure development, these areas may not meet the expectations of some retirees who are used to a higher standard of living.

Other factors that may need to be considered include the availability and accessibility of healthcare services, access to social security benefits or pensions, and the ability to access financial resources from the retiree's adopted country.

It is important for immigrated Nepalese who are considering retiring in Nepal to conduct thorough research and seek advice from experts in areas such as immigration law, financial planning, and healthcare. They may also want to consider making visits to Nepal to get a better understanding of what life in the country may be like as a retiree.

Retiring in Nepal can be a good idea for some immigrated Nepalese who are attracted to the country's culture, traditions, and lower cost of living. However, it is important to carefully consider the potential challenges and difficulties associated with living in a developing country, as well as any personal circumstances or needs that may need to be accommodated. Consulting with a financial planner or retirement specialist can also be helpful in making an informed decision about retiring in Nepal.

It's completely a personal choice and you can adopt if you were raised in Nepal. Few months may be difficult but it will be fine. I assume you have at least some close relatives. If I am in your shoes, I would retire around 55 and go.
Retired life in USA not gonna be that easy, when you are alone (assuming that kids raised in US will go in their own path and some other state than you live), and old enough to do anything. Enjoy your earning when you are able to.
Life in USA is you are working all the time regardless of your age. Always stressful. Have seen many examples.

Nepal ma retirement ramrai hunxa yedi family relatives haru xan vanae...life quality ya ha ko jasto ta obviously hudaina but bato ma xati fulayera hinna chai pouxa nepali vako lae

This is a great topic. Many Nepalis are on the same boat. I personally believe that when you live in Nepal, there is this experience of "Atmiyata" which is difficult to explain. This Atmiyata gives them peace of mind and a sense of belonging. The moment I land in Nepal even for a short visit, I experience this belonging in Nepal. I feel home and I am at peace.

I think this feeling of peace you are referring to may be due to the lesser amount of accountability that you have in Nepal. In the US a slightest infraction can land you in jail or you have to pay hefty sum for every possible breach while in Nepal you are relatively free in the original land of the free.