[u678u]

> water bottle off Amazon or a Netflix subscription

The first is a trivial item, the second an item of zero marginal cost that doesn't matter if payment fails.

A better example is settlement time of a car or house. If you buy a car maybe you can drive away today, but it takes a while before your ownership is fully registered.

[benglish11]

I once bought a car, but did not have a check for the deposit on me. They let me drive off the lot with the car and I dropped off the check the next day so this is a pretty decent analogy. If for some reason I was unable to deliver the check I would be returning the car to them at a reduced value.

[maratc]

The real question is, when was the car stopped being their property and started being yours (so you could resell it for cash, for example).

If the title transfer took 10 days, your transaction settled in T+10, even though you might think it's instantaneous.