I dont have a problem with this, and think its a good thing.
Basically trying to nip the problem in the bud, before it gets to my/our stage.
If you look, there is a lot of help for 26+ people already, and I guess most of it would be unavailable to anyone under 18.
I guess having more than 2 gambling specific residential rehab centers in England would be a start. (I know this was true in 2015, unaware of any more that have opened if they have)