From this Wikipedia article on own goal
An own goal is when a player scores in their own team's net or scoring area, not the opposing team's, during sports games in which points scored are referred to as "goals" (e.g., association football). An own goal is usually accidental, but is counted as a regular goal. It may result from an attempt at a defensive play that either failed or was unexpectedly intercepted by an opposing player. It is considered to be one of the more embarrassing blunders in all of sports.
Reading further shows that own goals in football are treated differently compared to other sports such as:
If a goal is scored by a player on the defending team, credit for the goal goes to the last player on the other team to have touched the puck;
When accidentally scoring at an opposing team's basket (basketball's equivalent of an "own goal"), the goal is credited to an offensive player.
In NBA rules, the goal is credited to the player on the scoring team who is closest to defensive shooter and is mentioned in a footnote.
Under FIBA rules, the player designated captain is credited with the basket.
So, what reasons make it not possible in football to adhere to the same treatment of own goals, other than the fact that "it has always been this way"?
Okay, I understand my previous way of questioning was a bit opinionated (or downright silly if you wish), so I have edited it to make it more straightforward