This is a red herring, but it is a very old one.
It is that. I know Catholics who left the church claiming that they were never taught about the bible. I don't buy it. In Catholic schools there's no way you can NOT learn about the bible. You are in fact literally indoctrinated. All day long it's pray, sing, hear bible stories, catechism, pray more, go to mass. I had religion class one hour a day, five days a week for 10 years (till junior year when I transferred to public school) I knew all about the bible...and I never actually read it myself. It was read to me! There was no escape from it!!! :O>
And since the Bible isn't literally true, neither is the mass, right?