I'm in my early 60s. Since the menopause I've noticed the weight go on gradually and be harder to shift. A LOT harder. And I lead a pretty active life, as my user name indicates!
I have tried low carbs for nearly a year. Whilst it stabilised the weight gain it didn't really shift any that had already crept on. So a couple of months ago I really went for it. Cut out virtually all carbs (bread, sugar, potato products, sweets, cut chocolate to a minimum - occasional treat, biscuits etc etc).
I completely re-arranged my diet around fruit, veg, salads, meat, some cheese, low fat yoghurts, low-fat/no added sugar everything - and have lost at least a stone and counting fairly easily.
The first week was tough I admit, but once my stomach and taste buds got used to the lack of sweet sugary things I was fine. Had a minor blip over Christmas but now almost back to my pre-Christmas weight. I am a dress size down and feel pretty good! I would like to lose another half stone and now I know what I need to do I think it will come off!
Pre-menopause I wouldn't have struggled, or had to reduce my intake as much as I have, but I can honestly say I don't miss the bread/cakes etc. In fact if I do have a "cheat day" I feel really bloated after having anything fatty/sugary.
I think cheat days are important though, especially early on, as otherwise you end up craving stuff. I still do have carbs/sugary stuff, but in such small quantities that it doesn't affect the ongoing weight loss and I don't end of craving "forbidden" foods.
It is possible to lose weight successfully as you get older, but it's harder!