I'm 53 and we had BMX bikes when I was about 11-12, but there was no "scene," no races no parks no nothing. We built ramps and jumped stuff in alleys and on sidewalks, trashcans were a favorite. I had a Sting Ray Jr. with knobbies, bars, and a "10-speed" saddle that I did enjoy puttering around on. Most of us also had Schwinn Varsitys that we actually rode to school, so even then we had "big bikes' and "little bikes" and we were close to outgrowing the little ones even at that age.
I am intrigued by learning some skills, balance, and body control on a little bike like the 24" Redline. Things I never really learned in the first place or need to re-learn. I learned to wheelie on that Sting Ray, and that's about it.
But I have an idiotic question: do you just leave the seat way down like a DJ bike? I know you would in a park or in a race, but if you're just puttering around, do you stand the whole time? That might be good in and of itself, just seems weird.