I'm considering buying a collapsible wagon and I'm interested in input. My kids are almost 7 and 4.5. My immediate desire is to use it for door to door cookies sales but I envision we'd also use it to bring our stuff to the neighborhood pool during the summer. I don't anticipate needing to use it on the sand at the beach (probably because I've never owned one and always managed to go to the beach).

At my kids ages is there any need for them to sit in the wagon? We've been stroller free for over a year and managed two theme parks alright.

I've heard I should get one at Costco but there isn't one there now.