Micah Sweet
Level Up & OSR Enthusiast
Pointless bookkeeping to you. Please refeain from insulting the playstyles of others. And consider this: the whole group levels at once with milestone, regardless of who did what and how much. All you have to do is make sure your PC is alive when it happens. It is a pacing mechanic with no connection, even tenuous, to the setting or the characters living in it.Unless everyone is sitting on their hands all game, they're doing so with one that's time based too. They're just not micromanaging it. In practice all that sort of advancement does is cutting out unnecessary bookkeeping.
As I said, experience can serve a purpose if you're trying to incentivize certain types of behavior and players may not otherwise lean into that behavior. Otherwise, its just pointless bookkeeping.