Do you think there should be a statistic for "robbed" base-hits?

You aren't really serious are you? If you are keeping books for your little league team and don't want to hurt their feelings go ahead. If you think something like that should be standard then I suggest you add a stat for one hit off the handle that lands in the triangle in left or right center or that 16 hopper right up the middle, and don't forget that swinging bunt for a hit that you couldn't have rolled any better. Baseball is a crazy game, you can hit a ball right on the screws for an out, but you can drop one 100 feet off the handle down the line for a double. I think the stats are just fine.