Here in Norway, one can loan 5x of annual gross income (minus any debt you have), and at least a 15% down payment.
Average annual household income here is 610000 NOK (~64500 USD). Average home price here (end of April) is 4483328 NOK (~473914 USD), so the ratio here would be 7.34 - but that's assuming single income household. For double income, that ratio would obviously halved.
In any case, the average person buying an average home here would have to save up a down payment equivalent to 2.34 annual gross incomes, in order to get the maximum possible loan/mortgage (5x annual income)...and that's assuming this person is completely debt-free.
If this person managed to save up 25% of their annual income, it would still take almost 10 years to save up for that down payment - but the housing market will likely outpace the saving potential of a your average person. So now you have to save up 2-5 extra years to afford the down payment. All while you're paying rent that is much higher than the mortgage would be.
Lesson learned is that being an average single person trying to buy an average house sucks, at least over here.
(Caveat: obviously most people do not purchase "average" homes, but start on the lower end - and most will save up with partners, as well as enjoy appreciating value of their first "starter" home)