The parish can’t force you to pay if you absoultely can’t pay.
However, I’ve been to a few meetings where this has come up.
The basic feeling is that people are willing to pay oodles and oodles of money to the caterer, the wedding planner, the reception hall, and for the floral arrangements, and the wedding dress-but when it comes to paying the church for it’s electricity bill-all of a sudden “we can’t afford it.”
That having been said, at my parish, there is a very low stipend fee for parish members (and when I say low, you might have the money in your wallet right now).
Our former pastor felt that people who were members should get the church for (almost) nothing. They put money in the envelopes every week, they are the lectors and extraordinary communion ministers and the ushers. They bring food for the bake sale, they donate gifts on the giving tree, they help decorate and un-decorate for Christmas. They support the parish, so the parish supports them. Our new pastor agrees.
The non-members pay a larger rental fee-one that is more accurate to pay the bills.