Almost certainly unreasonable to start a taat and about this favourite subject.
Last year when I had a 10 month old baby, and a school age DD, I was fairly certain (under a different name) that it was fine to bring all younger siblings to school nativity.
Now DS is a toddler and there is no way I would bring him. He will be up and down the aisles like a loon, and probably trying to go on stage which I will hurt my back trying to prevent. Not worth it.
I know all toddlers are not alike. And I have childcare because I work. Although am both taking a day off work and booking extra childcare to go to play.
I thought you might like to hear someone say "I think I was wrong" though. [Grin]