Ok. To put it simply.
I started game with male origin.
Attended school everyday, ocasionaly working in the pub for keeping rent paid and hanging out with the soccer boys. Sammy pretty fast got confidence to talk back to the bullies (I think around 30 is enough) and in no time they starts targeting Cass leaving no time to even think how to deal with them.
In My opinion they should be more agressive toward Sammy
During my playtime (around two seasons), I've seen more scenes including Cass when Sammy only got some mean comments at the start of the game, not even been punched once for talk back. (Struggled more in order version).