Kids don't judge. As a kid, you can meet another kid and get straight in there asking the important questions in life and have no fear about being judged or even to care if you are judged.
Do you play Pokemon go? Bingo. Got an xbox? No? Ps4? Etc etc. Never ending list of stuff to keep asking until you hit the mark with no fear.
As an adult you have to be careful what to say for fear of offending them, or to give the wrong impression. Kids have none of these fears.