Why do some people become vegans?

this is all that I can think of, hope this assists you =)

Explanation:

1.) they become vegans because they want to live a longer and healthier life.

2.) Perhaps it is a tradition (veganism) that their family abides hence the reason, they become vegans.

3.)  To prevent themselves from getting obesity.

can you explain it better

most cajuns resided in acadiana, where their descendants are still predominant