I think some items are way more than average and what people need (e.g. jeans, shorts, cardigans, trainers, swimsuits as examples).
Other items seem normal depending on your lifestyle. I have a lot of coats, but it fits my lifestyle. Smarter ones for work, formal situations, combinations of jackets, knee length, waterproof, warm, lightweight, but my whole life is built around the outdoors/dog walking/hiking and go around the country in all sorts of seasons so they are all used for different functions.
Same with having different clothes for functions, knowing I spend a lot of time outdoors, in different seasons, so I have a lot of outdoor activity clothes. I need several pairs of walking boots/shoes because I need to rotate on a 2 week walking holiday so things can dry/air.
Some of my wardrobe is just for fun though and I have a lot of fabulous shoes. But I am an adult, it's my money, my choice and no one else business to judge.
I 'stock rotate' to ensure clothes are all worn and not left at the bottom of a pile. If I find myself not wanting to wear things regularly it's put aside for donation so I feel my wardrobe is all used.