I can understand your initial thought, but it’s not really a game that needs a, “save anywhere,” system. It saves when you sleep, which can be any time of the day you want to do it.
Part of that process is not needing to even worry about it, as it does so every day. You get paid for crops turn-ins, you get new weather and luck effects, you see crops grow and animals produce things and all of it revolves around that one-day time period. So it comes back to the game playing aspect of forcing you to do well, or poorly for an entire day (or until you sleep.)To give it any other method would trivialize the gameplay quite a bit.
It’s no different than any number of games that force you to go back to a certain point to save, or pass a checkpoint to save, etc.