And there ya have it. Everything all of us have said is absolutely true and yet we have all ends of the spectrum.
It can be done, but it’s a PITA. If you do it, it needs to be a house that is easily rented, in a rising or at least established housing market, and you need to be sure that the rent covers the bills. Then after 15 years, the renters have paid off a nice chunk of the mortgage for ya, appreciation has hopefully been good to ya, the renters haven’t crushed your soul like an empty can of Old E... you might have a decent piece of change coming your way when you sell it.