If a gambling company is proven to be targeting student players, it must be dealt with.
There are standard rules that gambling companies must abide by, one of which is the age of +18.
If the company has implemented all the rules including +18 but the users who register to play do not prevent it, I think that's the problem.
I think there are still many student players who are not +18 who play without the knowledge of their parents. If the casino enforces KYC, it can be avoided because they don't hold an identity card yet.
But online casinos work a little differently. When you register, the casino website asks whether you are 18 years old and legally an adult. If you confirm this, the casino removes all responsibility from itself. And since many casinos today do not require identity verification, it is impossible to actually check this. But because the player confirms the truthfulness of their age information, the casino thereby protects itself from liability.