Many people are free these days and it is easy to get addicted to gambling as gambling is easily available online. One should find other hobbies other than gambling so that he does not become addicted to it.
That is the typical solution that we tell to addicted gamblers. They easily endure those suggestions because dealing with that is very difficult. Telling them some specific hobby would make them think if it's good for them to take that transition.
And the topic that's being told about cryptocurrency is a good direct solution for them, they can easily hook up into it if they happen to see how much money they can make. If they have learned how to hold, trade and analyze crypto markets.