why do train and plane seats tilt forward?

Every time I get on a long flight or train ride, I brace myself—literally. The seat always seems to tilt forward, just enough that I find myself slowly sliding down, especially if I’m wearing anything but jeans. I end up pushing my feet into the floor the whole time, and by hour six, my legs are sore and I’m grumpy. It’s even worse on those shiny vinyl seats; it feels like I’m on a slow-motion slip-n-slide. I’ve tried stuffing a sweater under my thighs or wedging my bag under my knees, but nothing really works. I don’t get why they design seats this way. Wouldn’t it make more sense to tilt the front up a bit, so you actually stay put? Is there some secret reason for this—maybe it’s supposed to help with blood flow, or is it just a weird design leftover? Last time we flew to Argentina (16 hours, mind you), I seriously considered bringing one of those foam car seat pads just to stop sliding around. Has anyone found a real fix for this? Or is there some hidden benefit to this seat tilt that I’m missing? I can’t be the only one annoyed by this, right? #travelstruggles #longflights #traintravel #Travel