1. They can use more secured ways to identify the real identity of their customer, the best thing to do here, aside from valid ID is they should add "take a selfie" on identity process.
2. They can also set a time limit of playing for a player, give notification if this would be their last game anymore for today.
3. Set a notification showing how long they've been playing.
1. Do you think licensed casino nowadays aren't asking selfie picture as a KYC verification? it's more than that, they even ask driving license, your bank account, your monthly check etc. However selfie picture isn't really a valid proof, what if his parent already took it for verifying an exchange or he lie to his parent the selfie will used for a good thing?
2. and 3. Nope, casino is want to make a lot money, why they need to stop a gambler who's keep losing?
Casimos can never put interest in what will reduce their tendencies for making more money to their casino, which the points number 2 and 3 figure this features out, they can't limit the extent you can go in gambling, moderating your gambling numbers of attempts is like them restricting themselves from making more money from gambling, also license is not the only way to verify the real genuinety of a casino because the licensed ones have scammed gamblers in the past and same the ones not being licensed, all these were just regulations from government that makes no much different frombthe real state of things with gambling.