NO! An anti-circumcision protest is not appropriate for children.
We've observed sporadic supervision of children by their protesting parents. At multiple venues an unsupervised toddler was close to falling down concrete steps or running into a crowded street.
The weather may be a factor. We've seen children swelter in extreme heat, and we've seen children shiver for hours in freezing rain.
An event with profane language, graphic images, fake bloody crotches, and heated confrontations is not an appropriate venue for young children. Rather than spend all day serving as billboards to please a parent, our children would be visiting a theme park, exploring a museum, or enjoying other kid-friendly activities.