Originally Posted by WhyFi

I think that there's also a difference between being in relative proximity and actually handling common objects. If my kid wants to go for bike ride around the park with a friend, I'm fine with that, but tossing a football back and forth? Nah. Same with baseball and basketball - people wipe their faces all the time, and then the ball gets passed around; just cut to the chase and lick each other's phones, why don't ya?