If you think that person has a great potential as gambler and can profit with it, just do it.
He will probabily not mind in at least trying.
But if that person or individual do not have a great potential as a successful gambler but just a addicted gambler, I don't think I will be doing it.
I would rather encourage them to invest and risk their money on great investments including crypto currencies that is new or maybe an old crypto currency that has a possibility of having a good price in the future.