"I understand the need for solitude and see no harm in the occasional need for retreat from the universe at large." If he had a villa such as that, he would probably visit it alone as well. As it was, the vineyard sort of served that purpose. Only his brother, his wife and son lived there. And Jean-Luc had hastily retreated there after his initial assimilation by the Borg, needing some time to recover. He could easily equate the two.
He smiled a bit at her mention of her mother teaching her piano. "My Mother thought I should know as well and attempted to teach me. And there are times that I wish I hadn't thwarted her attempts or squandered such valuable lessons from her while she was alive."