I haven't been able to figure out why so many people seem to believe that there is an AP thing against strollers. Somebody told me that Granju's AP book is vehemently anti-stroller. I went back through it and it's NOT.
I think the thing against strollers is (or should be) mainly for small babies. I'm sure we've all seen the "container babies" who are basically never held but always in some kind of baby container, whether a stroller, carseat, swing, bouncing chair, playpen, etc.
It is nearly impossible to do some things without a stroller-- like the things you mentioned, or a day at an amusement park, or a trip on an airplane that involves also dragging a carry-on bag and changing planes multiple times.
I also can't carry my baby while digging in my garden or holding a hot pot of food with two hands or when I'm bending over the bathtub trying to wash my other kids. I use a bouncing chair for that, although I don't use the bouncing thing I just let her sit in it so she can see me and I can talk to her.
I also can't carry her when I eat in a restaurant and she keeps knocking my plate off the table. That's the one time I actually use the carseat out of the car, I take it in the restaurant and put it on the special holder so that she has her own "chair".
And guess what, like you said kids like riding in a stroller after a certain age. But even babies sometimes don't really like being bound up in the sling. Some do, some don't and even those that do have their moments when they prefer to be able to be free to kick their legs and move around. I know some of the AP literature can glorify societies where babies aren't put down at all until they're 6 months old or something like that, but none of my 3 girls would have tolerated that, in fact it would have been very un-AP of me to confine them like that because they didn't like it. They like to have floor time (or, in my case since I have an active and somewhat aggressive 2-year-old to protect the baby from this is occasionally playpen time--gasp!) to be free to stretch and kick and move.
Still, I was just wondering the other day how people who put their babies in containers all day get along without a sling. It just makes no sense to me because after a while they get mad in the containers. If my baby isn't happy in the bouncing chair watching me, I do what I need to do quickly with the hot pot or whatever it is, and then I carry her in the sling. She'd be a wreck all the time if I didn't carry her!
I found this great article at the kellymom site recently that addresses this subject:
There is No Doctrine for Attachment Parenting:
Being AP is a Frame of Mind!http://www.kellymom.com/parenting/ap-frame-of-mind.html