This is a tricky one for me I tell you!
It all depends on the weather you live in and what your lifestyle is like.
The tricky part comes when you have to try and match your shoes to your outfit.
But if you wear different outfits and styles, certain shoes don’t work or look funny.
Wear clothing in the same-to-similar styles, lengths, colour palette and patterns, as not to have to keep running out to buy the RIGHT shoe for what you’re wearing.
Buy your shoes in neutral but fun colours & tones (metallics such as bronzes, silvers or pewters are always solid bets for my wardrobe) to keep it from being a yawn.
Buy pairs of shoes that can match with several outfits, rather than just one (a hard lesson learned!).
Be realistic & re-use your outfits. Seriously, if the same dress hanging in your wardrobe can be substituted for a similar event in the future, then you don’t need two, even if you think everyone knows you’ve worn that before (who cares what they think? :P).
I will say for the record however, that if you own shoes that you DO NOT wear, but just bought because they were beautiful (or whatever), then …. maybe you can claim them as art pieces.
Don’t get caught up in the numbers either!
In my eyes, a minimalist’s shoe wardrobe can be 20, even 30 shoes, as long as they each serve a practical purpose and function.
What if someone hikes, bikes, scuba dives, runs, plays soccer, plays golf, ..etc & so on.
I know you can’t use the same shoes for each sport, so if someone has different sets of shoes for different parts of their lifestyle, I say: Go for it!