Almost every car I’ve recently owned and/or rented has this option: unlock the car, then hold down the unlock button to roll all the windows down (and in some models, additionally open the sunroof).
I hate this feature with all my heart. Ive never needed it or wanted it and can easily roll down my own windows. 4-5 times ive come back to my car and windows rolled down after shopping or working as i must have accidentally activated it.
Same for the remote trunk opener. I can't count how many times people rang my doorbell at night to alert my the trunk is open.
Why on earth?
I hate it when it's operated by remote, but it's really nice to do it with the key in the lock. If you have to leave your car outside in the sun and you know it won't be raining, you can easily crack all the windows 1.5 inches or so to let the heat easily escape your car.