I did wheelchair for my mom few years ago, flying through Korea. She got received from the flight from KTM. Nobody showed up to pick her up from the rest area to take her to her flight to US. Luckily she met some good Nepali folks travelling together, so wasn't big issue. Even here in US, I have to do wheelchair for my mom every time she flies by herself domestic. There have been couple of incidents where nobody showed up to pick her up. So, I wouldn't rely on wheelchair completely, well if I had option..