Even over 15 years ago, back when I was that age, I think my parents would have said the same thing about me and playing Counter-Strike. There were easily days in which I clocked in 8 hours playing that game, but back then the community was going through a special time. Non-steam providers were gaining traction in my country and they were all terrible at managing their infrastructure. Most were running Windows Server 2008 because nobody in that scene knew how to manage Linux servers. We started our own services, just renting out server space to public Counter Strike clans and it was my foray into Linux server management. I then later interned at large companies, and made my way into the Bay Area.

I wouldn't worry about it. You never know what direction it will take them.