I wholeheartedly agree with Helen, "Anyone can stop eating animals any time they want to." Anyone can also stop wearing them, viewing them in aquaria and zoos 'for educational purposes' (sic), etcetera.
The key is to be found in the words, "any time they want to."
You can do anything any time you want to. It's the wanting that counts!
There is a very large, overlooked distance between wanting and needing.