I've taken to leggings in recent years, sometimes under skirts, sometimes under longer tops, while I'm larger than I'd like to be from the top if my legs upwards my legs are not. I tried cheapie ones first but they went saggy quickly and into holes, so eventually I got some mint velvet ones in the sale and they are good, best ones have a little skirt around the bum area, and fit snugly down the legs. While they were dearer than the cheapobmatalan ones they will work out less per wear as they have been washed and worn all winter and still look as good as when I got them. Am sorry for those who can't afford the initial outlay, but don't think that ought to stop me getting them specially in the sale, they are dear if not. One thing I like about them in the winter is being able to wear socks in my boots, I can wear warmer socks in the dead I'd winter or thinner ones and don't need to change as I would if I was wearing tights if I got wet feet.
I don't agree that wearing baggy clothes is most flattering for larger ladies. It's mist flattering to wear well fitting clothes, ideally ones that don't cling too much in plump places but which can be form fitting in other areas, and show that you have got a waist. A well fitting correctly sized bra can make a huge difference to how you look
If I've been out and someone has told me I've got my skirt tucked into my knickers I'm grateful to them for pointing it out, or if there is a label on show. Maybe some people don't have a person who can tell them that their knickers are visible, maybe sometimes if you think the persin might feel embarrassed a quiet word might be kind. Maybe day to the tena lady that maybe get knickers have slipped down cos you can see the TL, or if someone had a period leak she'd not seen. At school we'd all look out for eachother if our slip was showing, anyone remember saying Charlie's dead.
But if it's just fashion, men went through a time when they showed off their Calvin Klein waistbands on their underpants, and women wore things above the trouser top. Shirt lived fortunately
Things change though and things previously unacceptable are ok now, fil thought it was vulgar to have your braces in show, so you'd not have your photo taken with them showing nowadays they are a fashion accessory. Going back centuries men would wear codpieces to draw attention to their genitals and it was accepted in all strata of society, nowadays we'd not think it ok
It used to be unacceptable for women to wear trousers at all, and in my young day girls used to campaign to be allowed trousers at school, now some schools ban skirts. It uses to be unacceptable for men to wear anything but dark dull colours, thank heaven those days are gone