I would make a change in memberhip rules. While it would ruffle some feathers at first, it would solve any future problems. While I understand why women bring their young children to a meeting, but men would never think of bring their young children to a golf course to teach them how to play golf.
I would set the minium age for membership to 10. I taught school for many years and often taught the kids to make quilts. That included using a sewing machine and iron. Ten years old were great at this. No one sewed over their fingers or burned their hands. There mothers need to be teaching them and not expect other members to do it for them.
To make the change, whoever the people are who "run" the meetings need to get together and decide how to change the membership rules to fix this problem. They can do it by sending a letter to everyone by mail explaining why the membership rules need to be changed. Include a written ballot and an addressed envelope (no stamps) that can be mailed back or delived at the next meeting. At the next meeting, count the ballots and announce the results. No late ballots accepted. That way it can be a secret ballot, no one will feel uncomfortable with open voting at a meeting, and the "offenders" can not get into a verbal debate about it. First, make sure the membership rules do not restrict voting by mail.