I guess I was lucky then to have an older brother who didn't have any interest in super-hero comics. He was much more interested in marbles and baseball cards.
Although, I always wish that he (when he was seven in 1956) had had the uncanny luck to buy several copies of Showcase no. 4. We would be rich!
Or better yet, if my mother or father in 1938 had thought to buy Action no. 1 (both being in their late teens around then). Now that would have been a miracle of great fortune.
My dad (born in 1925) wouldn't have bought a comic to save his life, my mother (1929) actually did have a lot of Golden Age comics (she liked the Flash). I asked her about them and she said "why would I have kept a COMIC book?". Accordingly, she threw out all my comics sometime in the 70s...but they were read to death and pretty ragged.