As a mother and an Aikido practitioner, I am a little sensitive when I hear people talking about starting a kids program to help pay the rent, and concerns about not wanting to be a "babysitter." While a kid's program certainly can be a wise business decision, you are dealing with small and vulnerable human beings.
In my opinion: Whomever decides to teach children's Aikido classes (at any dojo) should:
1) actually like children and be able to relate to them well;
2) be excited about, committed to, and capable of constructing meaningful Aikido classes for children;
If there is such a person or persons at a dojo, then I think a kid's program can be a great thing on many levels. But it requires a sincere commitment to the children to make it work well.
So says Mom.