Sorry about the loss but I am not sure why all Vegans have to brag about being Vegans. I am just tired of it. If you do not like animal product and want to go Vegan then go for it but please do not try to prove anything or give a lecture to anyone.
Vegan or Non Vegan, it's just another food and people have been doing since centuries not only this generation. Just eat balanced proper diet whether it's vegan or non vegan and stop wasting your life to prove something stupid like climbing Mt. Everest just to prove "Vegans can do anything". Of Course Vegan can do anything so is the non-vegans. What's the point?