That can be 4 or 10 miles. Likely closer to the latter if bus connection takes 40 minutes.

Now be a frail 70 year old in the winter (+2°C and rain).

Breeze.

To be fair in this case the big problem with the bus was probably that to go a small way around the edge of town she would have needed to take a bus into town and another one out again.

> Now be a frail 70 year old in the winter (+2°C and rain).

Yes, and it was raining last night.

Not the OP, but walking may not be feasible. Sometimes the only connection is a road dangerous for pedestrians. Freezing or scorching or rainy weather is another problem.

4 min, rounded down by my navigation app, covering most of the distance on a clear road with a 60mph speed limit. I think half an hour+ walk each way. It was dark and raining when I went to pick her up which is another consideration.