Let teenagers pursue their interest, as many interest as they want and as many as you can afford. Of course those interests should be safe, healthy, and edifying but other than that give them free reign to explore. Yes, those pursuits can be expensive but so can the alternative. And yes, they will chase many dead ends before they find their sweet spot but that’s okay.
The parents my wife and I look up to for the way they got it right with their teens once told us their secret. They said “we kept them so busy with good activities and surrounded by positive peers that they didn’t have the time or the interest in the bad stuff.” Well, that certainly requires time, energy, and sacrifice on behalf of the parents but the truth is that’s what it takes to raise healthy teenagers in an unhealthy culture.
Take Away: Let teenagers pursue their interest, as many interest as they want and as many as you can afford.