I dont know if its a good or bad decision but i have an example:
When i was in university, my classroom had 4 Split AC. Every day the class CR used to come first, or the clerk used to come and power on the AC and by default all 4 ACs were 17-18 degrees.
Sometimes students also used to do that while windows were kept open, doors not closed properly, and while going for interval/lunch breaks keeping the AC on.
Very soon the AC got spoiled and water started leaking from all ACs. Many times they used to forget to put of the AC after class and next day when we used to enter the class it would be damn cold. The classroom is first of all not that big and we students used to put off the AC manually as there was no remote to change the temperature.