So the baby shower in parliament is becoming a down pour.

Yesterday the Greens Julie Anne Genter announced she's having a baby, she called a press conference at midday. It would be nice to say these sorts of things don't matter so much anymore in 2018 but in calling a press conference to announce a piece of family news Julie Anne Genter was admitting that for many people this is still a big deal.

It bugs a lot of people who believe that when you get into politics you're there to serve the people 365 days a year and you're not supposed to disappear for a few months to have children and those people are wondering why it seems to be happening more often.

For them, I have a few observations. First of all, Parliament is becoming younger. At the last election, the average age of our politicians was just a nick below 50. While the 50s to 60s were the most represented there's a bubble of of MPs aged 30 to 50. Not surprisingly these people are at baby making age.

There are more MPs aged 20 to 40 too. The left-leaning parties, in particular, have been recruiting youth, the Chloe Swarbricks and Golriz Ghahramans of this world.

So we have more younger MPs than ever before. But conversely, we have a drastic reduction of MPs over 60. Name one if you can, leaving out Winston Peters. Considering we have a baby boom bulge that's surprising and possibly concerning

And this is a big change. It used to be that people entered parliamentary politics in their 50s or even 60s after careers in other areas, whether farming, teaching, unions or whatever. Philip Burdon was a mushroom millionaire. Jim Anderton was a grocer and manufacturer before giving back to society.

Amongst women, they had already had their children and careers before Parliament. Think Shipley, Richardson, Tirikatene-Sullivan, Fitzsimons.

And with the trend for people to go into politics at a much earlier age, we're getting more MPs who have chosen politics as a career. Think Jacinda Ardern, Helen Clark and even Bill English who was never a farmer but a Treasury official for a few years and a professional politician for 27 years.

This trend means there's a lack of diversity of skills. The National Partly leadership race is between a lawyer, a lawyer and a lawyer. Name one builder or plumber in parliament. The current Minister for Construction worked in the Pacific Island tertiary education sector.

So while you could argue that the baby boom in parliament shows a House that reflects greater New Zealand better, I'd argue that our House of Representatives is becoming less and less representative of New Zealand at large.