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Learning from a young age that any religion will do means that your children almost certainly will ultimately believe that any religion will do.
In the Garden of Eden, Eve may have introduced sin into the world, but ultimately her actions worked out for good because it allowed all of us to be born and tested in this telestial state.
There will be pressure to go to church, marry in the temple, Yada Yada You will want to make sure you're ready to battle this for years, maybe a lifetime. Plan on her family trying to torpedo your relationship if you don't convert.