Once people learn, it is hard to forget and go back.

Some people feel that humans have a right to eat other animals but not to trash the earth. They may choose veganism because a vegan's ecological footprint is light, but once they are not invested in eating animals, they are more likely to be willing to learn the details of what happens to them. That learning will encourage compassionate people to stick with a plant-based diet.

Giving into anger destroys the soul.

Many people will first be attracted to veganism for their health but find themselves far more open to learning about the animal issues when they don't have to block them out three times a day in order to enjoy eating. Then once people learn, it is hard to forget and go back. Come for the body, stay for the soul.

It is important to meet people where they are. It reminds me of yoga, to which people may flock for the physical benefits, often to find that the spiritual benefits match or even outweigh them.

I don't understand "animal people" who say they are not environmentalists. Do they not realize that the vast majority of animals live in the environment?

Remember that veganism is a compassionate lifestyle not a punitive religion. Enjoy it! And if the going gets rough, it's better to relax the rules occasionally than to give up the game entirely.