Most wardrobes contain pieces in the wearer's 'goal size' that never get worn. They take up space and produce daily friction when getting dressed. Clothes that fit today get worn; clothes that don't, don't.
Why goal-size buying fails
Goal sizes assume a body that doesn't currently exist. Even if you reach that size eventually, clothes purchased in advance often don't fit when the time comes (different proportions, changes in style preference). The clothes you bought for the future you mostly stay in the cupboard.
The audit that simplifies wardrobes
Try every piece on. If it doesn't fit today, donate or store. Keep only what currently works on your body. Replace any wardrobe gaps with pieces in your real size. Repeat annually.
Clothes are tools, not aspirations. Buy what fits the body you have today.