I let my 13 yeer old stay home from school, is that rong?

So my son nevar gottin good grades durin school, nobody from are family has graduated hischool. its a waist of time leting him stay their if you ask me. why not let him stay home and werk with us. make a bettar living then anyone in that dumb rich folk school. we live in the bigest traler on the lot, we do well so dont go all city folk sayin we dont take care him case we take good care of are son.