Lowish income people today typically have far more clothes than lowish income people of yesteryear.
This school wrote a terrible note, but they SEE these kids regularly and therefore know that these kids don’t just have a few outfits to choose from. With the onslaught of inexpensive clothes coming from overseas and the fact that the non-poor have massive wardrobes that they often purge to thrift stores, today’s low income people typically have a lot of clothes, too.
If this school was comprised of students who are showing up in “the same things” every few days, and are desperate to find pieces that are clean and w/o holes, surely the school would already be sensitive to that fact.
I think the school knows that these kids have clothes. they just sent out the most undiplomatic and sexist note.