You're learning a sense humans were never born with
Humans can't fly. What we do is learn to feel something invisible and push off it. That's not a sport skill — that's a sense you weren't born with, and it takes time to grow one.
Flying isn't walking, or cycling, or even swimming. In water you can see it and feel it. Air is invisible.
You're learning to read turbulence you can't see, push off something you can't touch, and feel pressure most people never notice their whole lives. It is a genuinely new human sense — and tunnels are the only reason it's now something a person can actually master in a lifetime.