Absolutely as I said earlier when kids feel they don’t have control of other areas in their life they will often seek to control one of two areas: what goes in and what comes out. I’ve seen this many times.Patsy had gone through stage 4 ovarian cancer and chemo for years. That in itself could cause some psychological issues with the kids. Feelings of confusion, fear, their mother being sick and their father working a lot. They had Nannie’s and house keepers to help. Seems like it would be normal for the kids to have some sleeping issues or toileting issues or any kind of issues for that matter. There would have been times where patsy was sick in bed for days on end. I think the bed wetting and toileting issues possibly stem from the traumas of seeing their mother go through cancer at their young ages. Patsy had cancer for most of jonbenets life.
But one example that comes to mind is a brother and sister I had in school (preschool age). He had major issues with food and she with toileting. Their mom was going thru treatment for brain cancer.