My family attended a United Methodist church when I was young. Long story short, in her early teens my older sister told my dad she wasn't going to be a member of the UMC. I was the quiet, sneaky one who let my sister blaze all the trails, and had intended to quietly slip away from church life unnoticed when I got older. But, once my sister made her announcement, my dad asked me, "What about you?", so I was honest.
He was shocked into starting a search for a church where my sister and I would agree to give it a try. After visiting many different denominations, we got to the LCMS church, and my sister agreed to that one. Again, I quietly assented with no real intention of staying, and dutifully went through the motions of Confirmation.
I figured college is when I would escape. I dropped in on the campus LCMS church so I'd know where to go when my parents visited, but wasn't serious about it. What I did notice, however, was that while the male-female student ratio for the university was something like 55%-45%, the church male/female ratio was something like 20%-80%. So I stayed.
The pastors had a huge influence on me, and by the time I graduated I was a committed Confessional Lutheran. I also met my wife there, so ...
As a bonus, my older sister has been an organist for Lutheran churches for 40+ years and my younger sister is married to an LCMS pastor. Christ took hold of my entire family.