I don't like these adverts that imply that all women of a certain age are incontinent or have some kind of leakage. That is not necessarily the case. My Mum was 84 before she even thought about buying something like Tena.
We used to do our pelvic floor exercises when we stood at the door of a 747 saying good bye to the passegers. If you clench every time you say goodbye, your pelvic floor has had a workout 400 times. Result!