I bought my house, at age 19 without the help of an agent, all the have to do is coordinate: home appraisal, home inspection, title company. If you can make 10 phone calls you can buy a house without an agent.
Not necessarily. I bought my first house without an agent from a seller who was selling by owner.
It's quick and simple. We sat down at a table and negotiated a price in about 15 minutes, then had an inspection and paid a title company to do the rest.