when my DS was 5 he went to visit friends. All he would wear were "soft pants" (sweats) and he was hard on the crotch.
He came home and said, "Mommy! Did you know that not everyone fixes holes in seams with safety pins? did you know there's something called a Sewing Machine???"
As a person who failed the A-line skirt in 8th grade and hasn't touched a sewing machine since, I salute you.
Erin C-H