well my kids must be feral then. they drop their trousers / skirts and wee alfresco without so much as a glance at me to check whether it's ok. to be fair, DS (now 5) does ask if we are in the park now. and he will usually go inside when he's playing in our garden. however, if he is outdoors with his best friend (wherever they happen to be), the pair of them will just drop their trousers and take great delight in weeing wherever they are. his best friend's 3 yr old brother then joins in. and to complement the scene, my 2yr old DD will step out of her skirt and take her shoes and socks off, stand in exactly the same pose as the boys and follow suite. (she has learnt that not removing socks and shoes means very wet feet, hence the removal)...
feral - yes. harmless - yes (IMO). when they are still doing it at 13, i will worry...