Vacancy on long term rentals or house hacks

[Vashist D.]

I’m confused about how if it is so easy to pay a low mortgage and finance a home, why would people want to rent? Brandon turner in his podcast claims that vacancy rates are usually 5% but, I don’t understand how people would choose to rent your single family or multi family instead of apartment buildings or traditional rental buildings. With the modern world of the internet most educated people know getting a mortgage and buying a home instead of renting is better, so why would people want to rent my investment and lose money? I’m able to find these good deals while browsing but I don’t know why someone wouldn’t just buy a property themselves instead of renting? And if you guys know if vacancy rates on average properties are really that low. Especially with multi family house hacks, which I plan on implementing in my early 20s why would people choose to rent a multi family instead of new constructed apartment buildings? Thank you anyone who can explain to me if vecancy are not a problem to worry about.