If my memory serves me correct (it may not) until last month, Thai school children were required to have 3 uniforms - school, sports and scouts. Did your kids, or grand kids, or when you were a kid, was there only one set of school uniforms; or was there 2-3+ sets, just in case the trousers/shorts/skirts, shirts, shoes, sox, etc. got dirty and could not be washed for the next day's school? I remember I had a clean shirt and sox every day I went to school; my mother did 2 clothes washings a week.
And do not forget the school bag!!
Then there are the school extras - educational trips to exciting places (shopping malls), historical sites, temples, etc.; all of which are not free.
Then there is - "Mum, my teacher says I need an iPad, ......"
Enough from me.