How often does your LO go on field trips for school? Where have they been so far this year? And are you allowed to join them?

We were allowed to join previous field trips, but the kids are going on one Wednesday and they are asking that parents not go. They are going to the grocery store and a community center place to donate canned goods that they buy at the grocery store. Interesting...however LO gets anxious when things are out of the norm. Her teacher wants her to try and go but I'm nervous she will make things difficult. I just wish parents could go!