Sure, some people buy a computer without knowing anything about the computer.
Unified memory is not user accessible. If you think you’ll need additional memory, it’s a good idea to upgrade now.
They say it right there. Should it be red and flashing? Should there be a confirm button?
If you go into the Apple Store, someone who is trained to help is always available, and various models are typically in stock.
I’d like to firmly repeat, that Apple never should’ve said that bullshit. Also I feel that 16 gigs should be the standard amount for any Apple laptop. They are premium products. Perhaps the Mac Mini could start at 8.
And since you pulled out the gaslight, I’ll call you a misinformed accuser.