Absolutely, it's fair to say there's a cost to dedicating huge amounts of time to anything, including work and school. I'd argue that people waste more time than they appreciate with inane things like scrolling Instagram/Tiktok, commuting. Everyone need to be somewhat aware of the microeconomy of their life, and there's some sweet spot where you're making decent money, not spending too much time working, not spending too much time getting to work, spending as much time as reasonable with your kid(s) when they're young if you have them and with your partner if you have one, engaging your own interests, and ideally taking care of yourself physically. It's all quite a lot.
When it comes to that category of your own interests, I don't really think one can afford not to spend time on them, lest you hollow yourself out. Whether any one thing is worth the time over another, like grinding papers vs travel, they're not always mutually exclusive; although trying to do both in parallel might be silly, I personally like to shift my attention periodically. I'll go and spend a few months learning, and then go adventure. I don't that much, but I'm happy to meet up with friends and do that too, and it means taking time away from video games or learning, and that's important too.
When it comes to that category of your own interests, I don't really think one can afford not to spend time on them, lest you hollow yourself out. Whether any one thing is worth the time over another, like grinding papers vs travel, they're not always mutually exclusive; although trying to do both in parallel might be silly, I personally like to shift my attention periodically. I'll go and spend a few months learning, and then go adventure. I don't that much, but I'm happy to meet up with friends and do that too, and it means taking time away from video games or learning, and that's important too.