Go for it. I started one 2 years ago. I reccommend trying to get group lessons. You can charge less per child but get more per half hour:) $10 per kid put 4 in to get the small group feel all parents want. Get 2 classes back to back and that is $80 per hour (if it a private home give the the home owner a break on price). Also you need insurace it will cost you about $325 for two million dollars coverage for 11 months, sorry I could not find any shorter or cheaper for this amount.
Tommy:D