If you take two or more different orientations of anything, from religion, to politics, to even science theory, the problem this can create, for an open minded person, is a loss of their former linear certainty. It is easier to be certain when you take only one side. The less you know the more you think you know.
As an example, how many people can accept the postions of both political parties at the same time? It is not easy going left and right at the same time. You start to appear sort of drunk. The only ways to deal with that paradox, is to figure out a way to average the two, or a way to accept only the best of both at the same time. Although this takes a lot of work and skill, and requires an open mind, it will put you at odds with those who are certain of their one side. If you want or need to belong it is easier to stay one-sided and certain. But if you are self contained, you can use the tension of the polarity to be more creative. But you will need a tough hide.
In the new testament, the spirit of truth was left behind. It is not called the spirit of linear tradition, but rather it was an inner voice or gut feeling that helps guides one to all truth. The spirit of truth implies learning from all, since truth and even partial truth is everywhere.
I was brought up as a Catholic. When I turned 13 I had my Confirmation, which is sort of a ceremony into adulthood. I few weeks later, I talked to my priest and told him I was interested in learning about other religions, including even the occult and easterm mystercism. He told me, it was good to be open minded about all the diversity of faith, and the all the various beliefs in the world. He figured I had my moral compass calibrated by the church and I was old and curious enough to go sailing to new worlds, including atheism.
It would be interesting if an atheist teen asked their atheist priest if it was OK to learn about other orientations? They may not be as forgiven, since certainty is easier when one is linear.