One problem is that she sees it as a hobby. It's literally life and death:
Commuting by bike can cut cancer risk by half - BikeRadar
With little kids I suspect commuting time is the only exercise you get. So it's a big deal to stop doing it. Kids over 6 or 7 should easily be able to make cereal, peel a banana or (god forbid) toast a pop tart, and get themselves ready for school. If it takes 2 adults to get this done you're doing it wrong.