It's been my experience that the average kid (under 10) is probably more observant than the average adult. Adults are too consumed with "big picture" stuff, they miss the details. Kids don't have the big worries of adults, and notice the little oddities more. And, because they haven't been quite "trained" in manners and/or political correctness to not point and say "Hey, what's that???", you get some interesting questions.I'm sure you're correct, but I believe your average rugrat will notice there's something there (it's right at eye level, after all) and probably reach out and touch it.
Q
). When they see me, it's not uncommon for me to get "mobbed" by a half-dozen 3-5 year olds, all wanting to get my attention and tell me about their day, what their mommy bought them, or what they had for breakfast/lunch/snack. Frequently, they seek to get attention in groups, and by grabbing pants, jacket, or shirt and tugging. Worse, the kid you don't see who gives your leg a bear-hug, slapping the family jewels in the process!!! 
It is impossible to defend yourself in that situation! Sometimes I can intercept their hands, but frequently, the one you don't see is the one that gets you. There's a couple of pickpockets-in-training in that class, I think! Even if it's not done on purpose (and I don't think it is), all it takes is a hug that you weren't ready for, a shirt that's loose, or a really sharp eye seeing the clip on an IWB holster and it can become a tense situation.