Guys, I think everyone understands your line of argument. And as far as possible, I don't think anyone wants to send their parents with others either. BUT, there are situations when they need to get back home. And usually you buy two way tickets when flying from kathmandu. Now, what you do...you either go back with them(again which might not always be possible) or try to see if there is someone who speaks the same language in the flight (of course there is wheelchair assistance, but again you will be more comfortable if there is someone speaking your language). Also, as you suggested above, I am trying to see if anyone is flying on that airlines during that week so that I can change the ticket. 
Now, regarding people coming back here and asking for help, this is the very reason that the forum like sajha exists; to help each other in the community, to share information and to have healthy discussions. And again, I tried to make the title of the thread as descriptive as possible so that if someone is not concerned, he can skip it.
Anyway, thanks for your concern! Have a good day!