[friedtofu]

He's in an EECS program so I'd assume he's looking into a career making games or in the game industry? I had no idea what I wanted to do at his age at a public university - switched majors twice(neither relating to CS) and never finished.

I've always wanted to be involved in the game industry, which is why I initially majored in Journalism(LOL, this was over a decade ago before print journalism effectively died) because I loved reading PC gamer, I loved gaming not just for gaming but because I found the creation of games to be so interesting.

I spent a lot of time playing, but also trying to create mods in Age of Empires and StarCraft but never thought about pursuing CS because I was and still am pretty terrible at learning any math/science related concepts, they never seem to 'click' no matter how much time I spend studying.

Point being, your son seems like he's still in a position to succeed. He's only 19, he just needs to find anything that he thinks is cool that he would actually put the effort in to learn and give him the fuel to step away from gaming and start fiddling with games.

It could be 3D rigging/animations, QA, whatever - you should try finding out what he likes so much about roblox or if it is as others have said; and is definitely a possibility that he's just using it as an escape.