And technically his family, the gens Octavia, was a plebeian family, albeit his branch was rather wealthy by the time of his birth.
Speaking of his mother Atia though, she was the niece of the Gaius Julius Caesar, himself from a patrician family.
The formal distinction between the family orders waned in significance over the centuries preceding the fact. That said, people always find new ways to feel superior to other people so it's not like there were no class distinctions, but the term plebeian was quite more complicated and nuanced than our modern re-interpretation of the word.
Speaking of his mother Atia though, she was the niece of the Gaius Julius Caesar, himself from a patrician family.
The formal distinction between the family orders waned in significance over the centuries preceding the fact. That said, people always find new ways to feel superior to other people so it's not like there were no class distinctions, but the term plebeian was quite more complicated and nuanced than our modern re-interpretation of the word.