Quote The Hollywood Frasier="The Hollywood Frasier"Where does the original OP say anything at all about his sons age ?'"
He hasn't, but it's not unreasonable to assume it's a youngster learning the game.
Quote The Hollywood FrasierA fullback isnt a defensive position its a attacking position.'"
I'm hoping you're not a coach? It's a defensive position with an attacking aspect. Yes, full-backs should learn to support, and how to inject into the attacking line at the right time. But if they can't do the defensive side of the position they're in the wrong position,
Quote The Hollywood FrasierA fullback needing good 1 on 1 tackling is a massive myth. There are hardly any instances in games where its simply a 1 on 1 situation between a fullback and the ball carrier.'"
What absolute rubbish. The full-back is the last line of defence. At any level if someone breaks the line the full-back has to close them down and make the tackle. If that's a myth I see mythical things all the time and saw several instances of it yesterday at amateur level. And if I recall, on Friday afternoon at SL level.
FFS, I'm not saying attacking isn't an important aspect of full-back play, but you simply cannot have a full-back who can't catch high balls, recover grubbers, close players down and make his tackles. Those are the skills any budding full-back should master first and foremost. You can live without a full-back in attack, but you can't live with him in defence.
Perhaps the OP's son isn't a youngster and if that's the case then fair enough. But as any coaching manual tells you - practice the basics before advancing. The basics kids should learn at full-back are defence, not hunting for an off-load from your prop. That comes later as your skills improve, your awareness improves and your coach gradually introduces more advanced drills and guidance. Get the simple stuff right first.