Walk in the stroller

We had another nice walk at school today. Have you noticed that I’m often in the stroller and not the buggy anymore? In fact, I can’t remember the last time I rode in the buggy. The teacher’s haven’t told me anything directly, but I wonder if I’m in the stroller because I’m too big for the buggy? Is it one of those things where if I side on one side then two lighter kids have to sit opposite me to balance it out? I won’t mind if it is that. As long as it is not one of those “does not play well with others” kind of things. It can’t me. I don’t bite or hit or cause any trouble. I think I’m quite well behaved. I wonder what it is.