His apartment seems unnecessarily large for his lifestyle. And as you say, even a smaller one might not be needed.
Discussion
Imagine, if he had 3 roomates. 1 kitchen, 1 bathroom, 1 table with 4 chairs, one living room couch, 4 futon beds, etc.
This would be more-efficient than 4 small apartments and much more efficient than 4 large, empty ones.
And then he could purchase some undies.