To start with, I just put it in the too hard basket, and joined the Church anyway. Then as time went by, I gradually started reading up on the topic (and others). I don’t get involved enough in Marian devotion (note - not ‘worship’), but I will be moving towards it more and more.
I suppose I had a bit of a head start even before I became a Catholic. I had a rather wise old Protestant pastor who made a few comments about Mary and Marian Devotion -
“I think we’ve lost something” (ie. Protestants in regard to Mary).
“I think they’re (approved Marian apparitions) a judgement against a divided church”.
“They (approved Marian apparitions) line up with Scripture.”
So I didn’t come into the Catholic Church with a hostile attitude. I suppose my attitude was more a case of “Well, let’s wait and see. I’ll join the church first, and then see what happens from there.” I mean, as far as that goes, it took me a little while to get around to genuflecting (crossing myself) at masses and the like - old habits die hard you know.
Then there was the benighted issue of church language. Early on I said to some other Catholics, “Well, I’ve got to go down to the Manse”.
They said “What? Manse? What’s that?”
I replied “Oh, you know, the house where the priest lives.”
They nodded and said, “Oh, you mean the Presbytery?”
I hadn’t long come out of a Presbyterian Church, and I said “What?”