not really

Traditionally, men should remove their hats during prayers or hymns, whereas women might choose to keep their decorative hats on. However, this practice can vary greatly depending on the denomination and local customs. Observing other attendees and being aware of the norms can help you navigate this aspect with grace. src

given this wasn’t even a service, but just using the space as a venue, i will say that the hats are the least disgusting thing happening in the image