Crypto or not crypto is the same. Pragmatic Play slots especially, already mainstream in Indonesia. The government seems doing a lot of crackdowns, but it's useless since the casinos are offshore. Just tell your brother to treat it as entertainment, not as a "get rich quick" scheme.
So far he's just playing for fun, but I don't know if he's making a bet or not. However, so far I have seen him play just like a game, even if he gets a chip he sells it for top up data, so far his mind set not for getting rich, but just playing a game. I just remind him to not to force buy chips considering that he is unemployed. and he only said that so far the slots chips he had from bonuses were only, but i don't know the real behind me