Do children often get onto rides, monorails, buses, and boats without their parents or CMs noticing? Is this a noteworthy problem at WDW?
I know people like to take every opportunity to blame phones and parents these days for various things, but I think that’s way down the list on potential skyliner problems.
You would be surprised. IME, as long as there are no physical obstacles to get over in terms of getting in/on, a fairly high percentage of tots will try it, and if a parent's attention is momentarily diverted, those little legs can manage to cover a lot of distance in a very short time. Kids manage to lose their parents in crowds all the time at WDW.
I think under normal circumstances, such as a ride, CM's will notice (partly because they are checking to fill seats, checking for height, or watching turnstiles), but the issue with the gondolas is that if a child darts in behind someone else on a busy platform, the CM is likely to think he/she is part of that group unless the parent says something, and by the time it's realized it may be too late to stop the car. If the parent's attention is diverted I can see it happening, especially if stroller-folding is being encouraged at the time, for whatever reason.
Now, how often is often? I'm thinking there will probably be a close call at least 1x/week, and perhaps a parent lock-out at most a couple of times per month. In the broader scheme of things it would be a very rare occurrence, but it's the sort of thing that now makes news when it happens, thanks to social media. (Back when I was a kid the typical parent probably wouldn't have stressed much about ending up in the next car as long as the child wasn't alone, but that was then. Parents tend to be much more paranoid now.)
FWIW, in 22 years of minor kids in my house, mine have managed to do it on airport trams a handful of times, and even once on the AK parking tram, when they jumped on ahead of me and then refused to get off at last call. They thought that leaving Mom behind to take the next tram was a very funny joke -- until their tired feet realized that I still had the car keys on that very hot day.
