Invite Household

Agreed! It would be awesome for example to have grandparents be able to invite their whole families over even grandkids they haven't met yet etc.

I would love the to have options to invite the entire household and also invite individually if I only need that sim.

Omg, yes! Here's the scenario:
The welcome wagon shows up and you're playing a household with a family. Teen, child, etc. And you know one of the neighbors who showed up has children, too, but they don't show up.
It would be awesome to invite their whole household over for dinner and be able to have the children introduce themselves.

How is it that we still do not have this option? :s