If I recall correctly, in the late 40's and early 50's a pair of overalls (ovah-halls) cost about $1.25 and a pair of blue jeans was about $2.00. Not only that, but if you have several boys in the family, you buy them a bit large, and you kinda grow into them...like the brogans that were about 2 sizes too big...and pass them down to little brother if there was anything left of them. I remember one kid in my grade school (rural SW Missouri) that...weather permitting...came to school wearing NOTHING but overalls...no shoes, no shirt...and I assume no underwear. Now that kid was poor...and his hands and elbows were "rusty" as Mom called it, from not bathing for weeks at a time.
The boys that lived in town were "rich". They wore blue jeans and Captain Marvel T shirts (they had their own little rich-boys club). I know one of them was the son of the local Pharmacist.