Teach the pitcher to throw to 1st. Teach the catcher to throw to 1st. One good step and throw will prevent this the rest of the game.
I see this same crap (usually at 3rd) in Dixie Youth - I can't stand it. If coaches would teach the kids the fundamentals of throwing a baseball you'd either catch someone off the base or catch them 10 steps before they get to the next base.
I don't quite get it - throw the baseball - How to play the game, step 1. I seem to remember a rather famous coach say one time "you hit the ball, you catch the ball, you throw the ball" - but then those players lolly-gagged around too