Is it weird my boyfriends female roommate cleans

My boyfriend has a roommate that cleans and does everyone’s laundry. He told her if she was able to do that that she wouldn’t have to pay as much rent. $400 a month in a huge house is what she’s paying.

Is this weird,??

Edit: it’s just her and him and her 5 year old son living there as well as his 4 year old son