Great, so all you need is a high-earning job starting at 20, that you got without going into student loan debt ($50/week is the payment on like $15,000 of student loans which is practically nothing, so you are essentially suggesting not going to college or getting your parents to pay for most of it or being extremely brilliant and managing to get some really great scholarships or getting into one of the few extremely exclusive schools that cover most of the cost for people from families of modest means) and a spouse that also managed to accomplish all of that who you managed to meet and form a relationship with without doing any of the most common social activities that people do to enable them to meet people and form relationships. And then either choose to not have children or have an income high enough to cover both your outrageous SF daycare costs and your $800k mortgage at the same time. And of course, hope that the condo is still only $1 million ten years from now. All of that sounds eminently achievable for a typical person and like a sustainable to run a society /s.
I'm not complaining out of personal bitterness. I live somewhere somewhat less expensive than SF and have been relatively lucky on most of those points and have lived frugally and so am fairly well on track to be able to buy something by my early thirties. However, this is not a sustainable way to run a society. When even people who are among the luckiest and most privileged 20% of people have to scrimp and save to get something basic like a 1000 sq ft condo and the other 80% has no hope at all of ever getting that, something is seriously wrong.