I dunno, when I was a kid I didn't want to play sports but my parents kept signing me up for teams. Is that "disturbing"? I also didn't want to eat my vegetables or go to bed on time. A _lot_ of what kids do isn't going to be what they would have chosen for themselves, and that's ... parenting I think?
Is it just the word “disturbing” you take issue with? Maybe it is too strong. Is “weird” okay? Because if I’m being honest, I have never in my life seen a cafe “filled to the brim” with students doing school work, and I live near several large universities. It would indeed be weird to see that, especially so if the students were in high school!