I'm saying this as someone who prefers vegan over other options - You can go vegan if you live in a place where you can easily have a variety, you have the spare money to afford said variety and if you have the time to dedicate to learning and preparing vegan food. Rice and beans are vegan, but surviving on that alone is miserable.
That's not even going into how it screwed over people who relied on things like tempeh and quinoa before it became to expensive.