couples in their 60s just discovering LS... where on earth do we start

married 38 yrs, hes 67 im 64, kids long grown, retired last yr in cornwall. weve always had a strong sex life and weve talked abt LS for literally decades but never did it. now were retired, time-rich, healthy enough, and weve decided ok lets actually try. but every site looks like its for 30somethings, every club photo is people in their 40s tops. we feel a bit ridiculous tbh. are there couples our age actually doing this for the first time... where do you even begin at 67 w no LS history at all