S.H.
The brands they listed... are good products.
I have found them all, here in my city.
But those products are not on my kids' school lists. These are products I have just bought myself.... for my own home/kids, because these are good products versus the cheaper off brands, that are not as good.
Prang watercolors, are way better than the Crayola.
Uhu Glue sticks, are better than the Elmer's glue sticks, for example.
Friskar's, are a good scissors, which they make for kids and even for Sewing. For adults.
Glue sticks are requested, because it is easy to work with.
But my daughter is in 4th grade now, and her Teachers requested Elmer's Glue, in the bottle. Standard stuff.
You do not HAVE to, buy these brands.
These are merely suggestions.
A Teacher/school, cannot force you to buy these brands/products. They are merely suggesting, what they ideally, want. Because, after years of using it, they 'prefer' these products... because of its performance.
Next, simply call the school and ask them.
Because, for most people/families, cost is an important concern when buying school supplies. And they cannot make... a parent, buy something that when another brand is on sale... that is the better buy, cost wise.
Simply, call the school and inquire.
It is what they are there, for.