LCMS kids are catechized for 3 years, have to memorize Luther’s small catechism and have to appear before the congregation to answer questions about what they have learned. Not all churches do a poor job of educating their young adults.
I gotta applaud you for that. Here in upper east Tennessee, there's an outstanding LCMS pastor who comes out regularly to do the prayer vigil at the local abortuary, and he sometimes comes with older kids from his parish. I find them all very impressive, well-informed in Faith and Morals, and I have told him that if he was in the running for Catholic Bishop I would vote for him.
(Kidding, ruefully, of course, "Bishop" is not an elective office.)