Princess and Sox are the two kitties most socialized to me. When I go outside, they come running over to me to be pet. In recent days in February 2020, I have carried both of them into the house to get them accustomed to the indoors, but for no more than two or three hours at a time. Despite the weather being freezing cold, they have been happy to go back outdoors.
See videos of their first times coming indoors at socializing.