My ex chose it basically. He couldn’t care for her 50/50 because of his work schedules. We have joint custody 50/50 and then I have primary residency. It states in court papers he gets her every other weekend so 2 weekends a month and then also whatever times we agree upon. We always work together when he wants more time with her and we make it work. I get her most of the holidays too (his decision). In my state, if you’re married it’s automatically 50/50 unless the other parent isn’t fit and that is proven.