Not too old at all. I was a few years older than that when I turned my hobby into my career.
You don't say how many hours you have, or whether you already have multi-engine time. IIRC under JAR OPS you will need a minimum of 700hrs TT to be P1 in commercial ops air taxy. You might find your route to that means a fair few 'bag lugging' unpaid (unofficial) P2 rides - just helping things along - so to speak.