Dangerous only in wrong hands, I'm sure daughter will be perfectly safe unlike loons (boys) on bikes these days. Yes I agree we did tend to jump over things, me I never could afford a chopper, but would settle for anything with two wheels...no stabilizers!
My first new bike I bought myself, aged 16 with my tattie delivery round money, was an Eddie Merckx special, bright yellow it was, with his name on the side of it, most likely nothing like his winning days bike, didn't care!
Used to pass cars going down a steep hill, about 3 miles from my house, just to see their reaction of a push bike powering past them. More than likely I sold it to some pal that liked it. Don't recall.
Now I ride a TREK electric peddle assist road legal 250 w mountain bike, no jumping or speeding these days, just the occasional mad uphill dash.

No longer the daredevil.