I wouldn't make a subcategory for a single individual.
I have made lots of subcategories for small hamlets or single homesteads, when I have at least a handful (five?) profiles to place in the category, with expectance of more to come.
Particularly when we get into the patronymic era of Sweden, I find location categories for the small villages very useful, more or less indispensable for keeping the different generations of a family together in spite of their different "last names". The village name is such a helpful identifier for separating one Anders Andersson from another.