The problem is it wouldn’t be sold at the same price though. If Apple increased the base spec, the price would likely increase with it. And by that logic, we could argue “Do you think if the same laptop with 128GB sold at the same price people would go ‘well, that sounds good, but that’s just too much RAM for me. Pass’”. Every computer company charges more for more RAM. None of them charge the exact same for every RAM capacity. And a lot of computers that now start at 16GB of RAM also increased their pricing. So if Apple moved to 16GB of RAM as base spec (and understandably upped the pricing to reflect that), people would lose the cheaper option that currently does everything they want it to, and is more than enough for their needs.