The former England captain has taken a job with the BBC after his sacking by Birmingham City last season. His personal podcast is also being bankrolled by the BBC.
Rooney was asked by BBC Sport: "What do people get wrong about you the most?"
He responded: "It's no secret that I didn't even take GCSEs but I think people assume because of that that I'm not educated, which is really wrong.
"I made a conscious effort when I was at Everton and Manchester United to educate myself in a lot of different things, such as black history and religion.
"The reason I did that was because I wanted to hold conversations with my team-mates who are from different backgrounds.
"That was something I did to help me with my team-mates and help understand how they have been brought up.
"That's probably something people don't understand about me."