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Why do people use mortgages, when they could just pay for the house in full?
The advantage of using a mortgage is that you pay for a house at TODAY's price, using TOMORROW's money. Your question suggests that you rightly observed that it was not a good idea around 2006 (the last peak in housing). That was when prices were at their maximum, and had nowhere to go but down. Some experts think that house prices STILL have further to go on the downside. Meanwhile, wages have been going nowhere during that time. This phenomenon seems to happen about every 40 years or so, the 1930s, the 1970s, and around 2010. At MOST other times, say the 1980s, houses are likely to go up for the "foreseeable" future. At those times, you want to buy the house at "today's" price, then pay for it in future dollars when you are earning more money. The irony is that what most people observe as teenagers is usually the wrong thing to do when they are, say, forty. In 2035, it will probably make sense to have a large mortgage in a bull housing market, which is the opposite of what you observed around 2010. So a better rule is to do at age 40 what made sense about the time you were born (in your case, perhaps the 1990s). Whereas the people born in the early 1970s that got "caught" recently, observed the bull market of the 1980s and 1990s in THEIR teens and twenties, rather than the bear market of the 1970s that took place about the time they were born.