...Without "simxu", it means "we are accompanying-type-of-living", whihc might mean we are as a group living with someone ELSE....
That's not really a problem, IMO. While it may be true that the sentence exactly as is, but without simxu, implies that lo go'i may be living with others, it's only explicit that lo go'i ARE, and in this case, the implication is true, since they are living with their pets and children as well, as we are told later in the comic.