As a dude with limited fashion sense suits look funny to me, like pajamas with a night cap or short pants with stockings or powdered wigs just feels very archaic and out dated. I could see cloaks coming back at some point just as knee length hooded sweaters or hooded overcoats without fasteners. Capes look too much like wearing a blanket around depending on the material I think to catch on anytime soon.

Dresses of the coat world

Isnt Antonio Banderas trying to bring capes/cloaks back after he went to fashion school?

I wear a capelet in winter and it doesn't work well with my backpack. I suppose I could design a front wearing pack to carry my laptop.

Not all perverts wear capes.

Mostly because my cape is improvised and I need something to hold it in place, which usually means my pauldron, but I only wear that on special occasions. It also sheds a lot of lint.

That would be an interesting combination with my southern California uniform of flip flops board shorts and a tee

Some of us do.

I'd love to wear more capes and cloaks but unfortunately I, like the vast majority of people, am not Alan Cumming and will never be as cool as him.

There's one other thing that ended its use: it was used to concejal weapons. Some countries banned them just like wide brim hats (to see the face)