Was asking because there seems to be an inflation of minutes of silence in the last years. At top level, that is. With a little exageration, you might soon have more games with than games without a moment of silence.
For ex-players and youth players, of course. For the son of a board member, the brother of a player, the mother in law of the team delegate, the oldest season ticket holder. For a terrorist attack in ..., for an earthquake in ... . Football becomes more global, so clubs have fans all over the world, so they want to show they care for their local tragedies too. And if one club does it, then of course other clubs follow, because you don't want to appear insensitive.
It's all very sad, but sometimes you think: is a football game the right place for this? Is it still relevant for the club and their fans? And if there are so many, doesn't it take away the impact of the really important ones (for example former players)? It's of course a delicate subject, and no one wants to be the one that says "maybe it's better not to do this".