That was the conventional advice for decades, but it only works now if you can find a home for no more than $100,000. In our area, you can find plenty of homes under $50,000, but it will be an older fixer upper. Certainly not what most “influencers” would want. Social media (and media in general) have ruined our country with unrealistic expectations.
its the mortgage shouldnt be more than 1/4 of you take home. House price should be 2-3x your annual gross pay. you have a 50k a year job, you look for a 100-150k home. you wife makes 35k, you guys look for a 200k house. you beg borrow or save the 20% down.