
To the OP: it is in the end your family's decision if you need one, use one/ or not. That is great if some kids you can trust that much in a world of scary people not to run off. Sure the chances of someone 'bad' picking them up is very slim. A 'nice' person / CM could find them and help out. It's just up to you whether you feel comfortable either way. I personally don't want to take a chance, IF my daughter starts wandering a little, we will use one. She is 2 and some things might catch her attention for a closer look. As I said before I always saw moms w/ them at the mall and went Yeah okay how crazy! Then I had two of my own. While I wouldn't use it at our mall right now at a big amusement park where it draws all types/huge crowds, I think a little differently. Slim chance is still a chance. One our family doesn't want to take. I rather get a few rolling eyes than have something awful happen to my child. They have really cute ones, some even Disney theme that are backpacks. Those clip on and you can take the parent strap off and let them wear as just a backpack. Then if you feel the need to use it clip on the strap.
Its simply up to you. Good Luck!