A vegan would not wear leather shoes. If we're going to go off anecdotes, most vegetarians I know wouldn't either.

However many people I know transitioning to vegan/vegetarian lifestyles will continue to use leather products from before the switch, at least until they wear out, to avoid being wasteful.

Exactly, I'm vegan but I have a leather jacket I bought before transitioning. I will use it until it wears out. Some vegans would sell/throw out all their non-vegans clothes afraid of what others might think, but a lot of vegans do not care much.

I’m a vegetarian and I have all kinds of leather items. Shoes, motorcycle jacket, probably a belt or two. Because leather, when taken care of, lasts a long time, and I haven’t always been a vegetarian. But it would be incredibly stupid to get rid of them just for the sake of appearance.

And not every vegetarian is such based on morality. I wouldn’t be surprised if the “...but i eat fish/chicken” vegetarians wear leather.