You certainly don't have anything to worry about. There is nothing age specific about YC. I am pretty sure that I remember pg mentioning in a previous thread

You certainly don't have anything to worry about. There is nothing age specific about YC. I am pretty sure that I remember pg mentioning in a previous thread on this topic that there have been YC founders in their 40's and 50's. The age range in our batch (w2010) was 18 to late 30's with the average probably being somewhere in the middle 20's.