Undoubtedly, we have all be taught to believe things that we now have doubts about. It is okay to doubt those things, question them and change what you believe.
Parents do the best job they can but sometimes their beliefs don’t jive with yours. A parent who has raised their kids to think on their own will allow them to doubt and figure out what they believe.
Have you doubted what you were taught? I know when I was little a teacher told me that girls can’t be as good as boys in sports. I thought about that as time went by and I knew he were wrong so I didn’t believe something I was told to believe.