In my own personal opinion on this topic,I would not view them as a bad parent.. but I would be curious why exposing their children to adult behaviours is acceptable to them.Aside from the mobile billboards for escorts driving down the strip,cards with naked women for clubs littered on the ground,some really indecent drunkenness at times,shootings,open drug use and seeing private body parts hanging out of their clothes...really are for adults to be exposed to.Children are very impressionable and observe these behaviours with great curiosity.Perhaps I am a prude yearly Vegas traveller who is totally embarrassed for myself when I had way too many drinks... and their a child is staring at me! Vegas strip is for adults according to me.