nope...cuz it confuses kids
i often see kids (my cuzins kids) asking their parents there why they were not invited to their parents wedding?
besides, everything should leads towards neutrality. whereas showing affection in public really is an extreme form of expression> tamasha lagana....as if you have no sense of "particularity", or carelessness even for ur own emotions.
if seeing their parents holding hands is going to "confuse" the kids, then i'd get those kids checked out for some mental condition. Seriously, where do u come with this crap?