Re: He just wants to say Hi

I’ve not missed the point.

I’m talking about the caveat to it.

If you expect all owners to be equally diligent then you will be let down frequently.  As is far too often the case, people get dogs and then do not do right by them.

If you expect your dogs to be generally very well behaved, then when they are approached by an undersocialised undertrained dog, and you can get them to e.g. just sit there while you deal with the other dog, you can avoid major problems arising.

Certainly if your dog snaps back in a lot of cases it won’t escalate, but there will be cases where it does escalate.  And your own dog could get hurt.