Only 1 of my friends I recommended to play on a crypto gambling site. Even before he didn't have any crypto at all although he knew about Bitcoin and some other assets.
It happened because my friend asked me where I bet while some of his friends were playing on local sites. My friend was very excited but didn't immediately create an account and try.
After a few weeks when we hung out, he asked me to tell him everything and I had to tell him how to get crypto to bet. I also told them that some crypto casinos also accept fiat deposits. But they were more interested in creating an exchange account so I had to guide them more.

My friend liked the site I recommended, especially with a little luck in the beginning. Now I don't know if my friend is still playing on the site I recommended or not. It's been a while since I contacted him, but he seems to still enjoy playing there.