Here’s one data point. My kids go to one of those über-competitive high schools … average SAT almost 1300 / 1600, 8% of the class are national merit semifinalists, 85% of the kids get 4’s and 5’s on the AP exams, etc.
My last kid who graduated there took 6 AP classes as a junior (Calculus BC, Chemistry, English Lang, European History, Spanish, Computer Science). That was the busiest year. The biggest variable was whether his sport was in season or not. Here’s how I’d guess a typical week broke down for him when his sport was in season -
35 hours / week : official school day
27 hours / week : sports and EC's
27 hours / week : homework, writing papers, studying
20 hours / week : eating, showering, driving to school, etc.
He could just barely get to bed in time for 8 hours of sleep (pretty much needed 8 hours for his sport). Not easy, and there’s hardly anytime for socializing or going out with friends … maybe a couple hours on Saturday night, plus a few hours texting during homework time. Weekends have to be devoted to sports and schoolwork.
When his sport was not in season, he probably only spent 12 hours / week on EC’s, so he could go out with his friends for 6 hours each night on Fridays and Saturdays.
In our school district, taking a schedule like this is pretty much a requirement to get into a tippy-top school unless you’re a legacy or a recruit. Deciding to curtail his social life for 3-4 months a year was something he (and his parents) thought was worthwhile, but it was definitely his choice to make the sacrifice. It helped that it wasn’t year-round.
Looking back on it, I think he learned good time management skills from playing an intense sport while he was in high school. My son also thought taking the advanced / AP classes was definitely worthwhile despite the increased work load … one year he took a “regular” class for a graduation requirement and I doubt he learned very much or spent more than 20 minutes a week on homework for it.
I don’t think there was a lot of “busy work”, but there were a few dreaded “group projects”. Ugh. My kids probably could have spent more time writing papers instead though; I think that would have improved their writing skills.
Hard for me to know how other children handled their work load. Unless you’re in their house everyday you just don’t know. He did have a couple friends spend a week at our house when their parents were out of town and it seemed like they needed an extra 10 hours / week for schoolwork for a total of about 37 hours / week… that’s actually an enormous amount of time if you use it well. Hell, it’s practically a full time job. What you can’t do is combine it with 30+ hours / week of sports and EC’s and/or socializing or watching TV.
I fully agree that this isn’t for everyone. You have to be a strong student and quite committed.