Florida in the 60's you could drive a motorcycle that was less than 5 hp at I think it was 15 years old.
Most guys in Jr High had some kinda motorcycle. There was every motorcycle known to man lined up in the parking lot.
Every registration said 4.9 hp. I remember small light weight guys kick starting Triumph 750's and BSA 441's.
Also do not remember many accidents.
Of course traffic was a factor or 10 or more less than it is today.
I do remember the afternoon rain showers most days just about time school got out.