I have bought all 3 of my homes without an agent and sold my prior 2 homes on my own.
No agent is worth 3-6% of the value of any of my homes.
I bought a house in 1982. Paid 37,000. Sold it 18 months later for $45,000.
The guy I bought it from didn’t use a realtor. He should have.
Unless that agent can get you more than you ask. Also, the people buying the home know that you aren’t using a real estate agent and want you to cut them in on the savings.