When I’m not Christian nor do I believe in the Christian version of God?
But!
I love singing, was a chorister when younger for years, and really miss singing, but all the local choirs require a membership and / weekly fee, which I can’t really afford.
Church choir doesn’t, and even get paid if sing at weddings (very small amounts really), and I really enjoy singing hymns and liturgy and choral works, so would I be unreasonable to try it out?