I think sometimes people change over time. For example, my daughter is very messy (not filthy, she keeps things clean but messy and disorganized), but she hates being messy. She always says she would love to be either very neat or be messy and happy about it. Haha So she has been coming up with strategies how to keep organized and less messy and I
think she has been improving and perhaps one day she’ll be neat? Or she will finally be happy about being messy? Ha

I think it becomes challenging when you don’t live alone and your partner is different from you. My brother is married to a hoarder, periodically he reaches his limit how much he can put up with. Last year I thought they’ll get a divorce. When my sister in law was out of town, he and my younger nephew threw away half of their house. Ouch. It was bad.