Later I thought about this, and was thinking, what if she was with some weirdo, who reached over and grabbed her in an inappropriate way on this ride? She would have been helpless to stop it. What was I thinking?? And I am NOT over protective, at all, and I do not worry about this sort of thing all the time. But something about the way the TT cars are set up, makes me uncomfortable with single rider for younger kids. Something like ToT would not make me worry, for example.
Everyone is on video. Everyone is watched. CMs see all.
People, get your kids into martial arts. Not so they can take someone down, but to gain a sense of inner strength. So if someone touches them, they YELL and SCREAM and call attention to it. None of this going silent stuff.
In DS's aikido class they practice yelling. And yelling LOUDLY. They practice and practice and practice. I once walked up behind DS, he didn't know I was there, I touched him on the shoulder, and he nearly broke my elbow. And he was only 7 at the time. Oh and we were at home, not in some place where he might be expecting it...they had practiced it so often it was just second nature to DO something. I learned quickly to make sure he knows I'm behind him.
If you're that worried, there are two choices. Don't let her ride things alone, or get her into some classes that will help her not be a silent victim.
All that said, it's time for me to suggest the excellent book The Gift of Fear by Gavin deBecker. Lots of statistics (so much more likely for anyone to be molested by family or family friends than random person at a themepark), good info, and nice help for us to go back to having an intuition. And the "permission" to say "no"...as in, if your DD got up to the TT car and saw the people and got a bad feeling, she could just say "nevermind, changed my mind" and go to the exit. (I wouldn't tell the CMs I don't want to be in the car with them, because they would likely just think it's because she wants to be with family...there's no time in the loading area for long conversations about feelings and intuition, so in that case, just protect yourself and get the heck OUT)
A few years ago, when my kids were 6 & 8, they were supposed to wait for me while I grabbed our FPes. I ended up finding them at the exit of Tower of Terror. When I questioned them about it, my son told me that they got in line and when a CM asked them their ages, he responded "6 & 13" (he could easily pass for 13 at the time). The CM responded by letting them go and telling them "Next time, you're 7 & 14".
And, yes, they got in trouble with me for lying and disobeying but at least we learned the magic numbers.
A few years ago, while the age of 7 was still accurate for single rider, there was no age of 14 needed to be a watcher-over-kid. It was far more liberal.
A few years ago, a 7 year old could walk in the gates of a park alone. About a year ago (maybe 2) that changed.