Hello, grumpy old man here ...
I actually don't have a problem with kids at rallies as long as the parents don't expect me to modify my behaviour or language over the weekend and if they get brought on a trike, great!!
However the issue of safety etc in these days of the elf police must be of concern for the organisers with insurance etc. There are rallies that actively welcome kids and have facilities especially aimed at them, these usually dont have any issues with cars turning up either.
Cars at bike rallies is my gripe, never happened in the olden days, that was when dinosaurs ruled the earth of course
So yes, you choose the ones that fit your needs.
I think there will always be a difference, and discussing our opinions is good as long as even if we disagree, we respect each of us have our own opinions. Which is how it will always be I hope on here.