Don't really care for anyone smoking or vaping outdoors to be honest.
It's outdoors. Where else can they realistically go?
If you're massively OTT about any fumes getting into your system as some seem to be in this thread I'd recommend never leaving your house.
It's common sense to not smoke near children but it's also common sense to move your child from the fumes if you're that concerned. You're also bringing your child to fields full of thousands of randomers and your main concern is a bit of smoke being inhaled every now and again?
I'll let you have an illegal drugs debate with someone else, because it's nothing to do with any conversation I've been having.
And I'm a pretty healthy guy, thanks. I wish good health to everyone here, too.