The actual RC hobby has been pretty much a huge bust and disappointment for me. It's just too much hassle to make all that stuff work, program it, configure it, repair it, solder it, crash it, lose it, get upset all about it, charge it, rinse and repeat and do it all over again.. for what? Fun?
I put about $3000 into it and was getting nothing in return, and getting all my flying time actually in the sims, and I though, sweet be jesus, the sims are perfect. I can have fun with no headaches or expense. Isn't that what I want out of a hobby, instead of this never ending nightmare with RC hardware? Why did I buy all this RC c***? Just to see it in person? It wasn't worth it.. that's some expensive curiousity. I still have all the stuff, but it collects dust. I kind of think of it as the old obsolete way of having fun.. before.. powerful gaming computers.
If everything just worked out of the box, I think more girls would be interested. We really don't want to have to solder up a TV from scratch, so to speak, just to watch a sitcom for 30 minutes.
There are probably more out of the box RC cars and trucks that just work right out of the box... put batteries in it, switch it on, and go have some fun. But with quad copters or RC planes or nitro helicopters, you're basically you're own NASA building a flying robot with all the building and programming and configuring involved. Steep learning curves with learning Open-TX and Betaflight and soldering for that matter if you tackle it all at one time.
I myself probably would be more interest in the ground stuff, if it were like RC tanks and stuff with actual explosions and fire and destruction, like how Gomez Addams use to play with his trains. So, if you want more girls invovled, more destruction? As long as it don't have to be fixed...