People tend to waste energy when they're cold - it's the false savings of turning off the air-conditioner.
You think you can bear it - until you absolutely can't, and immediately turn it to the highest setting you can because damn it you want it warm now.
Then it's warm (or too hot) and you turn it off to cool down faster and...rinse repeat.
For most people it's far more efficient to turn the air conditioner on to a given temperature setting, so when they enter a room they don't have any immediate reaction to "make it warmer or colder". We are exceptionally bad at judging these things in the moment.
For summer, we're lucky enough to live an a near-coastal region where 90 degree days are usually followed by 60-degree nights with decent evening winds - we used the AC 3-4 times this summer instead of the whole house fan (to avoid pulling in neighbor's BBQ smoke), but for the rest the fan is adequate.
In Winter, we use space heaters (new ceramic ones that start outputting heat in 10 seconds that are kid safe to touch) in the bedrooms and a very low central heat.
Of course we have over-standard insulation and trees nearby - anyone in a top floor of an apartment complex will most certainly be using AC almost every summer day (but probably not shivering at all during winters).
You think you can bear it - until you absolutely can't, and immediately turn it to the highest setting you can because damn it you want it warm now.
Then it's warm (or too hot) and you turn it off to cool down faster and...rinse repeat.
For most people it's far more efficient to turn the air conditioner on to a given temperature setting, so when they enter a room they don't have any immediate reaction to "make it warmer or colder". We are exceptionally bad at judging these things in the moment.