Would you have a word or just leave it

Personally i think things are going to far and please don't get me wrong ..This man could be being nice because its custom for his shop and he his thankful for it, he my NOT have kids or grand kids of his own, he might be lonely, he likes to be friendly..i don't see the harm and you would never be in a situation where your child is alone with him shes a toddler, so just be friendly and aware that all