We all viewed MM on National Day and how far her disease has progressed. She was diagnosed in 2018 and the disease progress is about 3-5 yr. so MM has "surpassed" the "usual" progression. I think that, in most part, was due to her relatively young age and physical condition at the time of diagnosis.
Yet again, I say her condition was not helped due to the amount of stress she experienced last year and this year so far.

As an aside, Marius's lawyers have tried to get him out of jail and on house arrest with a monitor. The judge took 15 min. and said, "No". The reason wasn't because of his step-grandparents or his mother..."he just doesn't like jail."

I think Ingrid Alexandra wants to experience a carefree existence and be just a regular college student. I think her parents supported that. I think she chose not to go to school in the US because of current events and she really wanted to be able to relax, travel, and have fun while young. The chances are very good that she will have to act as hostess for her father when he becomes King and will have to shoulder a lot more responsibility.