That's a very rose tinted glasses view of home buying. Buying a home can be a very good idea, but it could also not be. So you got a better job and want to move, you better hope you can sell, it's no where near a guarantee that you can sell. You should never plan on being able to sell in a couple month period. Houses around where I grew up are taking multiple years to sell with prices the exact same as they were in the 90's.

Renting out a home can be very lucrative for some people, but also a lot of work. Boiler breaks on Christmas? You have to fix that and quick. All issues go through you, if you get a management company then there goes your profits.

Nothing in live just goes up forever, that's wishful thinking. While you may lock in a fixed mortgage payment, you have maintenance and house expenses. Houses get expensive fast. Anything that breaks, needs replacing, or you decide to fill because of lifestyle creep can cost a lot of money. Your weekends can quickly go from doing activities for yourself or your career to doing house work consistently.

Owning a home can be a really great idea and even a good investment, but that's no where near guaranteed and each person should look into there own situation.