Isn’t that a little extreme ?
If things were so simple there wouldn’t be different size options at all. Most of us here bash lazy influencers like Lily who often the wrong size/don’t tailor their clothes; and now it’s the other way round
I personally prefer to buy new jeans if I have gained/lost weight, as dressing according to your size plays a large part in confidence and acceptance of one’s new body. And it’s not wasteful. The clothes that don’t fit anymore are stored away and given to charity if not worn after x months.
There is a difference between blind eco consciousness and pragmatism
Edit : I don’t know which world you live in, but wearing Lululemon (ie activewear) all year round is impossible if you work in a corporate environment…