Predictions on what types of assistance a person requires should only be treated as a suggestion. There are many confounding factors which often skew these predictions. Factors which often affect predictions are a person's procedural memory, individual differences, physical abilities, age of onset and variation in the support provided by caregivers.
Constant supervision is required for most self-care tasks depending on how many procedural memories remain intact and how well structured the person was prior to their cognitive disability.