As mentioned previously, average age would depend on the time of year, with summer lowering the age due to the kid factor. On our TA (which started in the Mediterranean) the average age was probably close to 70, given the majority of cruisers were retired (which is our desired demographic, since we're retired and fit right in). We saw only one kid on our TA. Which is amazing, since, at my age, I consider almost everyone to be a kid. Now GET OFF MY LAWN! (oops, did I say that out loud?)