Im in Victoria and my son went to 3 year old kinder, he loved it. he made some good friends and is now in 4 year old kinder with the same kids and a few are going to his school next year. I think its great and gets them used to interacting with other children, being in care of other adults and following rules and routine.

3 year old kinder is not compulsory and unfortunately you dont get a government discount like you do for 4 year old kinder.. BUT now if you hold a Concession/Health care card you dont have to pay kinder fees for 4year old kinder.. so if you think about this... you pay a higher amount per term for 3 year old kinder then when you get to 4yr old kinder you dont have to pay anything... (as long as you have a concession card)