Hey there--
A word from the USA...your only too old in England

Which is simply to say that ballroom and latin dancing have been and primarily remain adult activities in the US. Many of our pro champion couples are older than you...and I can think of a few excellent pros that started dancing in their late 20's as well. Our amateur champs are a younger bunch sometimes...but not by so very much.
In the US you would still have a shot to be a national champion...but you are disadvantaged. IF you are VERY talented, and you are able to completely devote your life to dancing ALL DAY, and you want a career in the dance industry, and you are lucky enough to find an equally talented, goal-minded partner...well then you might be able to do it. A long shot...but stranger things have happened.
It all depends on how bad you want it and what you will sacrifice to achieve it...that is if you have the raw talent to start with!
On the other hand...you can have a wonderful career and be a National Champion on the pro-am circuit. Take a look at Nancy Senner at the Hotlanta site...she was a champion for many years. You certainly have the time to excell in this division designed for serious, dedicated dancers, who have lives outside of dancing

Good luck! M
championdancesport@comcast.net