You make a great point, at 90 ft and maybe even 75ft their kids would be dead at second. Even at 60ft, when you play in the better divisions, with catchers with good arms and kids who are alert, to try something like that would just be idiotic.

Rule Misconceptions‎ > ‎
Overrunning 1st Base
Beliefs:
1.Batters are out if they move to their left, and go inside the foul line as they return to 1st base after overrunning it.

2.Batters cannot be put out if they are in foul territory after overrunning 1st base.

3.Batters cannot overrun 1st base on a walk.


Realities:
1.The batter-runner may turn left or right, provided that if he turns left he does not make an attempt to advance. An attempt is a judgment made by the umpire. If he casually turns left, and walk back towards first base, this would not usually be deemed to be an attempt to advance.

2.If he makes an attempt to go to 2nd, after turning to his right and being in foul territory, he can be put out if tagged. This often happens on a wild throw, where a runner is running head down, gets to first base turns right, and then realizes the ball got past the first baseman. If he takes a step towards 2nd base, and then sees the catcher (or anyone else) has backed up the play and decides to stay put, he will be deemed to have made an attempt to advance, and if he is tagged, he should be called out.

3.This rule is in the same section of the book as “tie goes to the runner”. If you’re looking for it, it’s in the imaginary book that Coaches have read and use as a reference for the “1+1” rule and “batter is out for throwing a bat, blue” rule you hear frequently in Little League. The relevant rules in their entirety are below. No reference to “except on a walk”




Reference:
7.08 Any runner is out when—
(c) He is tagged, when the ball is alive, while off his base. EXCEPTION: A batter-runner cannot be tagged out after overrunning or oversliding first base if he returns immediately to the base;
(j) He fails to return at once to first base after overrunning or oversliding that base. If he attempts to run to second he is out when tagged

Personally, I would not call a kid out for hustling down to first on a walk (I like your teaching philosophy) and first baseman is waiting there with the ball in his glove to tag him if he takes one extra step.

A pet peeve of mine is coaches who teach their kids to throw over to first (in a no lead-off situation under LL rules) and have their fisrt baseman hold the glove on the runners hoping he will stumble off of first. After TWO of these, I call time and instruct the coach to KNOCK IT OFF. I've never had a coach complain or whine (maybe it's my tone of voice?)

What do kids learn from this?

NOTE: The batter-runner is not prohibited from overrunning first base on a base on balls (i.e.,
the batter-runner may overrun first base on a base on balls and is not in jeopardy of being put out
provided he returns immediately to first base).

Some coaches just like to make up rules as they go along. And also try to make the umpire believe it. Play Ball, and stop all these shananigans. I bet there has to be a time when while throwing over to first, as the batter walked, your player over throws the 1st baseman and allows the runner to advance to second. After one/two times, no body is falling for it anymore. Strike somebody out, force a pop up or a ground ball, make a play, earn an out.

Yes you can overrun first on a walk. And you are not out if tagged. Stop making up rules as you go and for crying out loud, stop throwing the ball to first after a walk.
Even though certain things(running straight to second) you do are within the rules, it doesn't mean you have to keep doing it every chance you get. Doesn't seem like a play that an advanced team would try.
Obviously your coaches are not familiar with the rules, so I guess you'll be throwing to first base after every walk you give up.
As for running straight to second, save that so when you guys play in the backyard and are playing under the Backyard rules.
Wait until you move up? When you move up, you won't be able to do that backyard play, because you'll be out every time.
Teach your kids how to hit the ball in the gaps and get doubles and triples, instead of running straight to second on a walk.
You call that being aggressive? Try being aggressive at the plate.

you can over run first as long as you dont turn towards second,,a walk is the same as a hit according with baserunning,,its all the same,,know the rules

FED 8-2-6 A batter-runner who reaches first base safely and then overruns or overslides may immediately return without liability of being put out provided he does not attempt or feint an advance to second. A player who is awarded first base on a base on balls does not have this right.

you are AWARDED FIRST BASE and first base only. you may not overun first base on a walk. You have no idea of the rules.