[xpct]

My personal assumption has been that 'pleasure', at least partially, includes expected practical returns. I'd also guess that's at least partially true for kids: "my parents told me if I read a lot, I'll be smart when I grow up", etc.

We generally worry less if we see utility in it, and if we have people to share our hobby with. I think it's reasonable to say there's few hobbies out there without real world utility.