Hi graceful mom

I don't have experience with this yet as DD is 3, but I do know our school does that quite often. When we toured the school here as part of DH's interview week with his company, we were able to speak to the elementary school principle and were told that they do this a lot. However when I asked if they would let her go more then a couple of years higher as at the time her reading level was already mid 3rd, they said no. Hmm

But if it was an option that would work for us when DD started school I don't think I would hesitate, but it would depend on your DS. What are your concerns? Does DS interact well with older kids? Is he complaining of the pace and the choices of books in K? Good luck with your decision.