I think it's necessary to keep in mind that Christianity is a belief. Like anything else there is a scale of how people commit since at the end humanity is at its foundation. I think you'd find similar with any other belief.

If I can say one thing, Catholicism in my view is (if I can be strong) a very warped version of Christianity. That might fit under some kind of fallacy, but the over-emphasis on Sin and addition of human-created tradition is at odds with the new testament and what I believe the core message of Christianity is about. Had I grown up in the Catholic church I'm sure I would have been put off as well. The additions to the Bible, praying to Mary, and the addition of all the extra steps to get to God and level up as a Christian are just so not Biblical at all. I'm a believer that the Bible is what we are to rely on to outline our faith, not a lot of the human additions you see in the Catholic church.

As for Acts 4:32-35 I take it for what it is and it's a pretty beautiful picture. Life is temporary, we can't take our possessions with us. We should be helping out those in need and share what has been given to us (entrusted to us by God could you say?) to help those in need. I think it's as simple as that.

I certainly could give more away so I'm not perfect, but it is something that I believe all Christians should be doing.