Would you advocate that university students buy a house for three years then sell again?

Assuming a university student had enough income, yes, most definitely. But most people buy houses after college, as they are busy paying for/off college first.

But realize that monthly rent payment is going to be about the same price as a monthly mortgage payment.

I agree in the long term, since we always need somewhere to live, that personal ownership is better; but if you’re moving a lot, or perhaps depending on your job situation, I think renting is a valuable service for many people.

Well just realize that you're losing money by taking advantage of that service, and then, yes, it is valuable service, but also a more costly service.

Is it more convenient for you to have food already cooked delivered to you? Yes, of course. Will it cost you more money, will you lose more money, than if you went to the grocery store, got the ingredients, brought it home, and cook the food yourself? Most definitely.

The point I'm making is don't pay somebody else's mortgage off, pay your own mortgage off.

A good rental means you’re paying the landlord to take care of things for you.

While strictly true, and I do not mean to be insulting, but that is a very financially dumb thing to say.

As I mentioned previously, you're giving your money to the landlord so that he can earn more money for himself, versus getting your own property and earning money for yourself.

Make your money work for you, and not for someone else. You earned that money.