My kids are 5, and Im not sure it’s on the horizon in the next few years. There are no answers here, but I have the same question and have been wondering about how others approach this.

I didn’t haven’t my first phone until 25, and it’s a different, much more connected world now, however.

Brompton is absolutely a game changer for multimodal transportation if your not taking kids.

My wife and I both have bromptons, and I recently got this very secure, but inexpensive seat post child carrier that works with the brompton. The only problem is it screws on and I cannot lower my seat with it, so it interferes with thr fold a bit. I’m going to experiment with quick release seat post clamps on it, which I think should be quite secure (same company has a similar seat post, it just comes with QR seatpost clamps and is less available and more expensive)

Nice. The feet rest on the cargo bike are slotted bilaterally so I can put a bike in there. I still strap them on a bit when I do for security, and have on done it with kids bikes so far

The orange bike is a bike friday haul a day MK4 (Heavy duty of old version, the changed the Haul-a-Day this past year). It’s rated for 520lbs. It carries my kids great. I use a Tern storm shield and storm box on it usually, but I stripped it down for the bike shop.

The folding one is a Brompton M6R. Love it. Best thing for multi modal transport.