Because they are really old or have holes in them.
Ripped!!
webitos
torn
Holes
Because they dont fit or are worn out.
to small
they got worn out..
because there is a presidents blood on them.
The pants are old and ragged. That style has gone out of fashion.
Underware should be changed at a maximen 6 month intervel (I.E. Thrown away)
Maybe they have gotten tired of them. Honestly some women buy a pair of pants, wear them once and throw them out the next day, mainly rich people do that because they have the money to throw out the pants and buy new ones.Some women will ditch pants that no longer fit.
So other people can reuse thefabric. But then you could also give them to Goodwill.