On day three in the UK, a not so random walk on the sunny side of the street.

From American Public Media, this is Marketplay.

In London, England one last time, I'm Kai Rizdali.

It is Thursday, today the 17th of July.

Good as always to have you along, everybody.

We have come to the UK, we being me and ADP chief economist, Neela Richardson, for our series, the age of work.

To get a glimpse, perhaps, of our economic future.

This place, the U.K., is getting older, faster than the United States is.

By 2050, one out of every four people over here is going to be 65 or older.

That's more than 10 years ahead of when it's going to happen for us.

So far this week,

we've talked about two possible ways to deal with that. You can keep older people working longer, or you can use technology to make the workers you have more productive. Today, we're going to

look at a third way, which put me and Nila on Schumert Road the other day down in South London.

Now, this is where it's at, Kai.

I'd be good if it was like 10 degrees cooler. That's all I'm saying.

That's a little warm.

Believe me, when I tell you, it was hot and sunny, very not London-like, but the streets were busy.

Nothing like an open-air butcher shop, I'll tell you that.

There were barbershops and spice stores and a guy grilling meat at a stall on the corner.

Oh my goodness.

Look at that.

That's great.

...