The guy at The Simple Dollar, when reviewing a book called The Tightwad Gazette, gives the following advice:
Introduce frugality to your kids (p. 536) If you’ve introduced them to money, frugality is easy. If they want gummy fruit treats, show them how much cheaper real fruit is. If they want juice boxes, show them how much cheaper juice is in bulk even if you buy a reusable container to drink it out of. Not only does it teach the child how to think frugally, it can cut down on junk food, too.What I don't get is if the mum or dad are so concerned about saving money, why did they have children in the first place? Children are not really necessary and many people happily live without them. Children are a drain on your resources. Having children is like driving a gas-guzzling 4WD. In fact, most parents who have children do drive 4WDs, so that's a double whammy in terms of costs.
If you have children, don't pretend to be frugal. To have children is to be anti-frugal.