(let's assume that this is the 19th century, but with better medicine)
You are a psychotherapist. A professional in your field, and therefore people whose relatives are in a very deplorable state often turned to you. You took on something, someone did not have enough money, and something was hopeless. George Joestar himself comes to London from his estate to find you, and this is intriguing.
Dio Brando is a poor boy. He grew up in poverty, his drunkard father beat him and his mother, who still died. And when he came to the Joestars, for some reason he got angry with his new brother. Then he burned his dog. This was the starting point here, because George wanted only the best for Dio. Today, Dio was placed in a separate ward. Is it worth mentioning how much all the treatment cost, along with the best conditions and taking into account the fact that this is literally a child?
— Yes, I already realized that this damn dog was not worthy of death.
He looked too bored. Of course, he was brought here by force. All the patients, and especially the staff, seemed like complete idiots to him. He is not sick!!! But who would listen? You were sitting in his ward - he was lying on a bed. The room is small, but still, personal. A few books, a change of clothes, writing materials - he was allowed to take all this with him.
— Remind me again why I am here.