Why do Vegans try to push their philosophy on everyone else like a religion?

Tweet

If I have to accept that you choose not to eat meat, why can't you accept that I choose to? My Daughter has become a vegetarian, she did this over concerns of what the long term effects of eating meat does to her health, not because she feels bad for the animals. I support her in this, I make homemade seitan, and sausages, and Tempe. I've learned how to cook tofu properly and made the natural foods store in the neighborhood a regular stop on our shopping list for TSP. but she get's crap because she isn't doing it the PETA way and as her parents, carnivores, have been slammed as ignorant because we still eat meat. It really upsets her because she is being attacked by the vegan community on her board because she said that she didn't become a vegetarian to save the animals and all the propoganda films accomplish is to show that there need to be tighter regulations on the meat industry. Being a vegetarian/vegan is a lifestyle choice. If I can respect and no mock you for your choices, why do you have to attack ours?