Association football is still struggling with video referees etc, while tennis and rugby were using them nearly twenty years before. It should be the simplest thing to install some kind of trackers/cameras to see whether a ball enters the goal or not. Same with offside.
"association football" aka soccer aka football
It is the proper name of the sport as in FIFA, UEFA, the FA etc. This is an international forum. I know fans of it barely recognise that other sports exist, let alone other football codes, but they have been way behind on match technology compared to tennis, rugby, the Olympics... Even horse racing and fencing, and a whole host of other sports. Association football is way behind the curve on this.