We almost never wear shoes on the house either. My family has a lot of customs I'm sure other people would find strange. We put coins in the casket to give the spirit 'rattling money'. The majority of my family is/was Christian. But a few of them had pagan leanings lol. I'm sure the church would have frowned. I myself am not Christian and have not been since I was a teen.
We had friends who lived in a new construction house in Spring Tx in the 70's. They had 2 Civil War era spirits that lived with them. Many people not in the family saw them