57 here. Sharing the love on this thread for wide-legged trousers. I have woollen ones by Zara (washable and go in the machine - used a lot for dog walking) and Fenn Wright Manson. COS also do loads of really great wide legged trousers, with excellent high waists, nicely cut around the backside. I have navy blue cotton ones which I bought for summer and am still wearing in the mild autumn.
Black woollen bootcut trousers (these were copied from a Gerard Darel fine navy wool pair, which I still have, but are a dressier wear with a pair of heels).
A pair of black MaxMara wide-ish leg trousers, again a dressier wear but with flats (last time they had an outing was to the theatre - wore them with a fine polo neck, a black jacket and a pair of jewelled loafers).
Flat shoes for the most part - trainers/chunky sandals in the summer, fairly solid chelsea boots or monk-strap flats in the winter. Loafers if I don't have to walk very far - I like a lot of support in the footwear department these days.
Jumpers - love them. Fitted, slouchy, polo-neck, V neck. I like cashmere and merino. COS is good, Eric Bompard when I'm feeling really flush (not since 2015 , alas). Easy to pair with wide legged trousers and flats, or with skirts. Silk scarf at the neck if wearing a V neck.
I own 2 skirts, one is navy and A-line, the other is a burgundy pencil skirt, vair ladylike. Can pair either of them with shirts/jumpers, flats or heels. Two autumn/winter dresses, one black, one navy both MaxMara.
Coats from Jaegar, Hobbes, ASOS and Marrimekko. Fairly classic styles - houndstooth, navy wool, a trench, that sort of thing. The trench is from ASOS, chuck it over layers to walk the dog, brush the mud off when dry. I do need a proper puffa style thing for really cold days, but the thought of spending a lot on such a garment isn't very appealing really.
Two handbags, one navy, one apple green, one clutch bag. One really good woollen scarf, two pairs of gloves (nice, non dog-walking/gardening kind).
I much prefer autumn/winter to summer clothes. I have 4 nice summer dresses, and one skirt, but until I can afford to get my varicose veins done, I don't really like getting my legs out without the benefit of thick tights.
I really pared down my wardrobe to the things I loved and I keep things a long time. I don't generally buy secondhand, as I've found my experiments in that direction don't work too well - mostly the fabric has had it by the time it reaches the secondhand shop - but I do have long stretches (2-3 years at a time) of buying nothing. I have found getting older has brought more confidence in my own style, so I feel less inclined to give myself a boost by buying more.