Right, ok, but you can only request final grades. So you can only do this once on 15-year-olds, after they've finished primary school. And the next time you can do this on a person, they're gonna be 18 and have graduated high school.
I thought the primary school final grades were protected until you're an adult, but apparently not.
I'm pretty sure you can't request information about minors, so you can't look up the grades of your neighbour's kids or something like that.