If it's a child friendly place you would expect the establishment to like having kids?
A prime example on how to do it well is Pizza Express. They provide colouring and stickers.
I'm not saying places shouldn't do it, just that to
expect it is a bit weird to me. I'd see keeping my kids entertained to be my responsibility as a parent I suppose, I dunno. I think it's because there are way too many 'parents' in my current local who just let their kids run riot while they go on the piss and they get on my nerves.
to be honest most kids don't bother with crayons etc after the age of 4-5, heads seem to be in their phones all the time!!
Their loss, I've got a colouring book in my handbag right now and I'm not ashamed