My kids are 46 and 47. They grew up in a house 2 blocks from a lake and a small zoo (Madison, WI). They were always outside, playing with each other or in groups with neighborhood kids. I never worried about them. I grew up out in NY, right outside of NYC. Long Island Sound was at the end of my road. My childhood consisted of playing at the beach, parks and in the woods by a creek. I have no idea of the exact age at which either myself or my kids did such but relatively young. Using finger as a gun? Heck, I had cap gun “six shooters” and an imitation Annie Oakley outfit! Boots and hat, too! Yes, we had one tv and dad was in charge of it. Except I was allowed to watch Wild Kingdom on Sundays! My funny memory is we learned my dad was color blind and so was one of his brothers when both families got color tvs! LOL! Remember the color and tint knobs back then? He’d make the people either purplish violet or green. It was so awful but so funny!