Internet is the interconnected networks and WWW is the open system of interconnected pages that can be accessed through internet.

Before WWW you had online portals and BBS.

Its is more like saying that cars existed and were used before of the production of the Ford Model T.

Mainly it is convenience of not having to lug a cable and I have a bit of fear of breaking the interior of the usb-c, it feels fragile to me.

I have an iPhone with MagSafe, so I can use it while charging.

Using a charging pad without MagSafe and cannot use the phone while charging can also be a plus for some people, it forces you to not being constantly on the phone.