What new rule is this? I didn't notice it, when was it added? If I may ask
I'm on my phone right now so I can't link it, but on the official legacy site there is an update about this, as well as, about spouses no longer being allowed to bring in money. You can search on the gallery for#legacylovers all those families are random and thus ok.
I don't know if I added families before this rule became reality or not, but since I'm not counting points according to pinstar I'm using my own initiative.
I mostly posted about the rule change so others would find out about it.