As a child I had an aversion to musicals, kinda still do.
People bursting into song in the middle of dialog always struck me as ludicrous and struck a major cringe response in me for as early as I can remember.
And theater was just not a big part of my childhood. My parents always steered me away from any pursuit they considered too "artsy" and impractical.
As an old guy, I can kinda put that instinctive response aside and give a musical production the benefit of the doubt for a least a bit before I decide if I'm going to enjoy it or not.
I watched The Sound of Music as an adult in my 40s and its actually pretty darn enjoyable.