Whether a jean skirt is appropriate for church depends on the church's dress code and personal preferences. Some churches may allow it, while others may have stricter dress codes that require more formal attire. If in doubt, it's best to choose a longer and loose-fitting jean skirt or opt for a skirt made of a more formal fabric like cotton or linen. Ultimately, the decision is up to the individual, and they should feel comfortable and confident in their choice of attire.