Touch screens are shit tor buttons. They can be hacked. They can be unresponsive.
There’s a load of other reasons, but either or both are enough to realise that a physical button is much safer. Perfect example of safety being lost in technology. Just because we can, doesn’t mean we should.
Is the iTouch still around? I remember my beige got one and it was essentially an iPhone without sim card.
Adult content could still be accessed, so Apple were to bring out the iTouch kids.
Never happened. :/