If your child has no acting experience and you would like to see what it's like to work in this exciting field, Kids Casting recommends that you start by submitting to casting calls seeking extras or background talent. No experience is needed. It's a great way to get on set and see how it all comes together. Kids Casting also recommends looking into auditions for short films or student films or looking into your local community theater. There are thousands of casting call opportunities that require little or no experience, it's a great way to just get your feet wet.
Make sure your kid's profile is filled and the photos are up to date; be persistent, be positive and stick with it.