Admittedly Kim takes this to an extreme in the Aussie show, staying with her frustrated mother long after she's given birth to her daughter. But in the case of the Ridges, not only is Jaime seemingly unwilling to leave the nest, she and her mother seem to be best friends, partners in crime, bosom buddies.
But is it a good idea having your mother tag along as you visit bars, your famous boyfriend, parties and other youthful events?
Perhaps Sally is doing what she couldn't do herself in her twenties, when she was too busy having lovely-looking babies with that other foxymoron, Matthew Ridge.
Apart from a desire to share and bare all, another modern trend underlying the Ridges' programme is a tendency to idolise our children, to write endless screeds about them on Facebook, ear-bash all and sundry about their achievements, and boast about them endlessly (Sally Ridge has been doing this for a while now in the women's mags).
It's fine for friends and families and other interested parties, but it can be over the top. And some have had enough.
Witness the "unbaby me" browser plug-in, which replaces your friends' kids on your Facebook news feed with other "awesome stuff" like fruit and vegetables and cats. Tempting, even for those of us in the thick of kid craziness.
Putting your child forward for a reality show is really just an extension of this desire to promote your child's brilliance to the world - with fame as a platform to fortune. But even if fame is relatively easy to come by in New Zealand, fortune is not.
Hopefully, at least, the Ridges are getting paid enough of a 'fortune' to make the inevitable criticisms and loss of privacy worthwhile.
And maybe pay for Jaime to - one day - get a pad of her own.