A mum used to post on here who had a daughter compete at 4. She was too young for artistic so her club put her in tumble as she was very advanced. I think she won everything and had a great time. Her youtube channel is staybymysidetonight and has lots of good videos of her tumbling. I cant remember her username on here but you could post a question to her on youtube to find out.
I don't believe their is an age limit. I know AAU and USTA power tumbling start at ages 4 & under compete together for the lower tumbling levels, then 5 & under for the next level. Once they start competing handsprings it is 6 & under compete together. The age group is 8 & under for the top levels. I've seen three year olds compete and they are the cutest little things! They were only doing rolls of course It isn't like gymnastics where you have to be a certain age for a level. If a 5 year old can do the skills to compete level 8 (or whatever), they can.
Thanks. I talked to the coach today. His plan is to compete DS this coming season (which starts when he is not quite 5) but there are about 6 months to figure that out.
I don't have any feelings about when he should start competing at this point, but wanted to know what I should expect coming down the pike to be suggested in terms of our commitments to the program time/money wise.