You're giving your Opinion also by saying it is okay to let young children wonder a building full of strangers. Everyone has a right to think differently.
No I think it's ok for age-appropriate children (not a single child) to go to the CL Lounge for food and/or drink without an adult, as does WDW since they allow it too . Please show me where I said it was ok to wander (not wonder) in a resort full of strangers? I never did. And that's a fact, not an opinon.
My kids knew not to leave the building (we were in GF SL); the options were lounge or back to the room.