There is a common narrative that, when it comes time to start a family and have kids, you should probably consider moving to the suburbs. Sure, you'll have a painful commute, but you'll get more space for your money, and maybe you'll end up with better kids.

I don't know, obviously not everyone agrees with this. I certainly don't.

But it is something that commonly happens and, in many cities, it is now happening more often. Here is a map from the Centre for London showing the change in the proportion of households with at least one dependent child from 2001 to 2021:

A darker borough means that it lost households with at least one child. And a lighter borough means that it gained more kids. Why this is concerning is that it means the trendline is toward more, and not less, childless cities. Here's an excerpt from a recent FT article:

A future with dwindling numbers of children is one many cities, including San Francisco, Seattle and Washington DC, are grappling with. In Hong Kong, for every adult over 65 there are, to put it crudely, 0.7 children, and in Tokyo it is even fewer (0.5).

Of course, this is not a new phenomenon. And we know the main drivers:

Randal Cremer is one of several planned primary school closures and mergers in inner London triggered by low birth rates, families moving away because of expensive childcare, Brexit, and parents re-evaluating their lives during the pandemic. The biggest factor, says Riley, is that “housing is just becoming unaffordable”. Philip Glanville, mayor of Hackney, calls it “the acute affordability crisis”.

So how do we start to solve this? Here are a few ideas that we recently talked about on the blog, but it is by no means an exhaustive list. In my opinion, this is a problematic trend that deserves a lot more attention. Because cities are at their best when they work for everyone -- from the young to the old.

Consider the following stat: 65% of all transit trips across the US in 2019 came from just 6 metro areas: New York, Boston, Chicago, San Francisco, Washington, DC, and Philadelphia. Not surprisingly, these are all places with dense and walkable urban centers. In other words, they have built environments that are conducive to the use of public transportation.

While we know that more people working from home has been bad for transit and that agencies across the world are facing deep holes in their budget, I continue to come back to two things. One, we have not yet reached a post-pandemic equilibrium. We are still making our way back to the office. And two, the single most important thing when it comes to transit ridership is land use.

If we want more people to take transit, then we need to build our cities accordingly. That means streets people actually want to walk on, and a lot more density.

The National Association of City Transportation Officials (NACTO) has just published this report on shared micro mobility in the US from 2010 to 2021. And it's a good look at how this space has evolved over the years. According to the report, the first modern North American bike share system was installed in Montréal in 2009 and the first in the US was in 2010. Though a quick Google search has Washington DC claiming this title in 2008.

Whatever the case may be, bike share ridership started somewhere around 321k per year in the US and trip volume is now close to 50 million per year. Electric scooters also joined the mix in 2018, and 2019 was a banner year for this mode of transportation. The report suggests this was due to cheap VC money subsidizing these rides. Electric scooters have seen their average trip cost 2x between 2018 ($3.50) and 2021 ($7), despite the average trip distance remaining more or less flat (1.3 to 1.2 miles).

Naturally, the pandemic was bad for shared mobility. But it is interesting to see how much this space has rebounded and how resilient it seems to be. Prior to the pandemic, bike share usage had clear morning and evening peaks, coinciding with people commuting to work. Since then, we have seen a shift to both a wider range of trips (i.e. to do things like get groceries) and more trips throughout the day.

To download a full copy of the report, click here.