Hi Kerry
I have just returned from my 13th trip with Just You last weekend.
I can substntiate as to what my friend Cindy has mentioned and also the youngest ever on my trip was also 28, On the main I would say the age range tends to be 50 + and very often I have often been the baby of the group, But to be fair there is no knowing what the age group will be. So I would have to say between 28 and 80. But regardless of the age range, It should not prevent you having a fun time, .
All the trips I have been on, Age has never been an issue.
Just You are a great little company, that truely do cater for the single traveller
Andy