Gerry "191 hrs solo over five years" is close to one hour a week for forty weeks per year. In my opinion that is not a bad average for a PPL of any age who isn't a millionaire.
I can't match it as I am too busy building. I find a few hours and ($$$) every three months to drive for Two hours, find an instructor and an aircraft to keep my hand in. Then of course there is the two yearly flight review. The comprehensive reskilling, rust removal and long touring flights have to wait until the chariot is complete.