I work in retail. When I can, I look at what women are wearing. The weather is warming up and I have been noting the dominant trend, which has been on all winter as well: leggings! If you have a notion of getting out and blending, regardless of age, leggings are a way to go.
On another note, I helped a lady and her husband the other day and they looked to be in their 70's. The lady was wearing a cute short dress (mid thigh hemline) whiteish patterned with a blazer top and black nylons. She really looked sweet. Nice to see a look after my own heart.