definitly should have several encounters per adventure day, but having 4 hard ones is equivalent of having 8 trash ones. probably even more so since wizards probably wont waste any spellslots on most encounters that are trivial.
but yeah, there should be some consequence to resting.
I know people shit on kingmaker for having timed quests, but holy shit hte 15 minute adventure day is a blight upon DnD
