This doesn't appear to be a thing you can easily do anymore now that social media has sort of supplanted it, but I used to email members of bands that I really liked when I was between the ages of ~12-16, so this would have been around ~~2003-2007 or so.

The band members wrote back with a surprising frequency, and were extremely polite and grateful for fanmail. I remember that I had a fairly in-depth email session with Justin Pierre, the lead singer for Motion City Soundtrack, where I asked him about how he comes up with songs and what touring was like.

Now, obviously, there's reasons that kids should absolutely not ever do this, because there's a lot of really crappy humans who might try and exploit the kids or do otherwise horrible things, but I was lucky enough to where that never happened to me, and everyone who wrote back to me was very professional and seemed flattered that anyone liked their music enough to write a fan email. I think email was still a new enough thing to where most people weren't writing fan emails.

It's something I reminisce about occasionally, and while I don't really agree with any of Reagan's policies, I will acknowledge that him writing back to this kid was genuinely a kind of cool thing to do.

ETA:

Before anyone goes judging them, I should point out that my parents did not know I was doing that, and would likely have told me to stop if they did, precisely because they would have been afraid of me being coerced into something horrible as a minor. I don't think they realized at the time that it was even possible to directly contact band members via email.