In each of your example, people still get the amount they buy. If you go and buy a timeshare for "up to 1 month per year", and was only allowed 15 days, you still be angry. the 1 month is in the contract, not 15 days.
Same goes for hotels. If I got kicked out of my hotel in the middle of the night because they overbooked, I would again be angry. Its my room for that night, not "up to 1 night".
As for rentaled/leased cars, as other has said in above, those don't normally comes with restrictions. Those that do, have such restrictions clearly advertised, and do not use words like unlimited mileage. They also don't restrict number of passengers or where you are allowed to drive.
Same goes for hotels. If I got kicked out of my hotel in the middle of the night because they overbooked, I would again be angry. Its my room for that night, not "up to 1 night".
As for rentaled/leased cars, as other has said in above, those don't normally comes with restrictions. Those that do, have such restrictions clearly advertised, and do not use words like unlimited mileage. They also don't restrict number of passengers or where you are allowed to drive.