Denim looks fabulous on older women and yes, older women can wear jeans.
I’m not taking about low rise, hootchie mama denim jeans, but a nice pair of trouser cut, straight leg or wide leg jeans look fabulous on older women. If you’re a bit larger on the bottom, try a trouser cut or boot cut jean, the flare will help draw attention away from your mid section and give you a slightly taller look, which is important as you get older. Also look for jeans with at least 2% spandex/lycra content- this will allow the jean to stretch to fit you and help to control any problem areas. Some brands to try- Gap, Banana Republic, Levi, Seven, UNIQLO, and Mossimo at Target.
If you’re a bit smaller on the bottom, then yes (gasp), you’re a perfect candidate for straight leg or skinny jeans (even if you have a bit of tummy). For those of you with a bit more of a tummy, try skinnies from brands like Old Navy and New York and Co as they have a bit higher rise (which will help it sit better on your waist).
Also, if you have gray hair, the dark navy color of the jeans really set off the gray in your hair. Pair the jeans with a bright colored tee from a store like Old Navy or a fitted sweater. But please, for all that is fashionable and good in this world, avoid wearing denim from head to toe.