What a boring unoriginal comment.
As people have said time and time again on here if you bothered to read before repeating the same old tired trite point...
It's been like this in computing/electronics land forever. Anyone who's above 30, knows we've always had to connect legacy stuff to new stuff since time immemorial, hence the use of adaptors. So why that would change all of a sudden, is completely moronic. The only difference now, is that we've been given 4 ports that will work going FORWARD, instead of keeping legacy ones that will be out of date in a couple of years, thus Apple made completely the right decision in allowing legacy adaptors to connect to ANY of those new ports, making them usable for ANYTHING rather than just ONE thing from the current/past.
And wireless has, and for the foreseeable future always will be, limited in bandwidth and unreliable for consistent data connections for high-res displays and very high-speed data transfer, in an age when users need to connect to LOTS of data sources (multi-displays, multi-external HDDs, printers, scanners, other peripherals, etc.), there is never enough wireless bandwidth to go around a fraction of them.
So please just leave the plainly stupid "I don't like dongles" repetition to the idiot brigade, thanks.