Isn't Christmas a religious holiday? Can she not attend a mass or a Christmas service and participate in Church events around the holidays? Isn't this one of the main functions the Church provides? Wouldn't there be many opportunities in nearly any Church for social activities?
My local Jewish minyan is having an event tonight with a public menorah lighting, traditional food, games (including an Oculus VR Hanukkah experience!). There were plenty of opportunities to meet people the past few days and during the week. That's one of the functions of a religious community. We sent out public notices on Nextdoor, etc, and invited everybody in the community.