At $84k average household income, assuming 1/3 going to a mortgage would give you $2.3k a month to work with. At 6% interest rate, assuming 20% down payment of $70k, you can just manage a $350k home and that is ignoring taxes, not adding other closing costs, not considering utilities, assuming an interest rate on the lower side and assuming a 20% deposit.
Add tax and that gives you around $1.7k to work with. Assume only putting down 10% and adding in $400 a month to cover utilities then you can manage around $175k home. That rules out buying a house in alot of the US.
And yes, households in more expensive areas make more but if you are buying the average house, that costs $410k you need to be making like double the national average income to stick to the 1/3 rule. How many households are earning $170k where houses are $410k?
Are people just devoting 50%+ of their income to housing? Everyone buying a house with the help of mom and dad? I just really don't get it.