There is one long road with just bungalows along it, if we moved onto that road we would be the youngest by at least 35 years, that said lots of young families and professionals who can't afford Brighton have moved to Worthing bring some of that Brighton cool with them.
I instantly associate Worthing with retirement homes and the bifurcating main road.
That said, I'm a big fan of the South Downs and would move there instantly if the Mrs could countenance living anywhere but London (which she can't).