I referee both Football and Rugby at secondary school level (I'm a PE teacher) and feel that although, in my opinion Football is a better game because of its simplicity, the level of conduct between players and referees is far more civilised in Rugby because, the referee can move the ball forward 10 yards if decisions are contested and referees use a10 minute sin bin if players transgress; both of these would improve Football overnight if they were introduced. The 10 yard law was trialled for a bit in minor Football about 10 years ago but no feedback was forthcoming about its usefulness. I'm well aware that Rugby has its own problems in interpreting its own laws but I think Football can learn a lot from it in terms of player conduct. What does everyone think?
Personally, I think the diving thing is unsportsmanlike, and so I would change the rules for penalties - because you are fouled in the area, doesn't necessarily mean a player had a goalscoring opportunity. If a player is fouled in the 20 yard area, they have to take their penalty from wherever they are fouled (unobstructed, except the keeper). The only exception is being fouled in the 6 yard area, where a penalty is taken from the spot.