Disgraceful

Taking one thing with another, boys tend to be lazy.
This means that one of the central duties parents have with regard to their boys is the duty of teaching and instilling what used to be called a 'work ethic'.

He who gathers crops in summer is a wise son,
but he who sleeps during harvest is a disgraceful son.
Proverbs 10:5

Disgraceful to who?
Here is the hit! To the parents whose responsibility it is to teach the lessons of work.

(Future Men, Ch 7)