Islam is fond of saying that it does not impose religion on anyone, but as you pointed out on your reflections about school days, it does impose it on everyone born in an Islamic society.
It backfired on me also, could never take it seriously since the age of 6 when I was told about Noah's Ark - I mean really!!!! At the age of 6 I figured it was a load of BS. ha ha

I don't go to mythical places with strange men.
-- Douglas Adams, The Long Dark Tea-Time of the Soul.