@AbelMunizJr
The main universe Sonic officially doesn't have a house according to an interview a few years back, but IIRC Tails does, so it's my headcanon he lets Sonic "borrow" it out of the kindness of his heart
@AbelMunizJr
@MemeBeanRegime
Maybe this is the same house he has in Secret Rings.
Also, he probably never lets Tails in so Tails can be more independent, but the little guy never learns to do so even after Adventure and Adventure 2. Lol.