Power Button is absolutely not required. Apple is right to get rid of them.
This is why you don't see a power button in any products other than... Macbook Pro, Macbook Air, iMac, Mac Pro, iPad Air, iPad Mini, iPad Pro, Apple watch...
END OF DISCUSSION!!!
Edit: Also iPhone Mini, Iphone Max, iPhone Pro.... and other iphones!!! but that is IT!!!!
This is why you don't see a power button in any products other than... Macbook Pro, Macbook Air, iMac, Mac Pro, iPad Air, iPad Mini, iPad Pro, Apple watch...
END OF DISCUSSION!!!
Edit: Also iPhone Mini, Iphone Max, iPhone Pro.... and other iphones!!! but that is IT!!!!