Because rep footy is part and parcel of the responsibilities of the competition that his club has signed up to play in.
If he doesn't want to, that's fine. But if he's good enough to be picked and hasn't played 10 years of NRL and the other criteria for an exemption, then he doesn't get an exemption. If he still chooses not to play when selected, then he sits out the corresponding club games.
It's all very accountable and fair imo.
What people forget is clubs are part of the league, and so are rep games. Rep games generate income that gets spread back for the benefit of the clubs. To excuse everyone who simply didn't feel like playing rep footy without any penalty would make a farce of things.
I don't think he should be forced to play rep footy, and its debatable that he would be picked. I don't think all players should be forced to play rep footy - but if they refuse to, then there should be a penalty such as missing the club rounds in the name of equity. It's been this way for years, with good reason.
We will have to agree to disagree, because I dont agree with any of that. His responsibilities are to the club he signed for, manly, and to his family, which is the reason why he deosnt want to play. He said that those week long camps away during origin were tough on his family life and being with his family was omre important. And you want to punish the bloke for that. IMO the only responsibilities a player has in this competition is to uphold the integrity of it ie: dont go out and make headlines for rooting a chick in a toilet or fighting or any of that crap. Lyon doesnt do that sh*t and should be entitled to decline to play rep football if he so chooses.