Why don't you just say: I know nothing about football ( and I dont care much), please enlighten me?
- Football is not a game of easy scoring, often you have to build momentum, by relentlessly putting pressure on the other team. It's more important than in other sports, because in football a weaker team can easily earn a draw against a stronger team if the later fails to do just that.
Your attacks ( and defense efforts) must compound. It's almost like building a narrative inside the head of the players and inside the head of the spectators before a goal gives everyone a release one way or the other.
Moreso than in other sports where you have a lot of scoring happening. Football is closer to watching an epic drama.
Now it's true that dynamics can change on a dime. But you often have to earn that change ( like by having a skilled player who attracts fouls ).
Having regular breaks makes it almost like watching another sport.
- In most of Europe and South America even people who don't watch regular league games have an intuitive expectation of how a game should be played. And they care.
Especially when it comes to national teams because it's often a big part of the national lore. ( It's like the offside rule. Even people who despise the game end up being experts )