"Assuming the worst" is not the same as being aware of the worst, and seeking to avert it.

The chances of stepping on a banana skin when you go out for a walk is not very great. But if you don't keep an eye on where you are walking you are foolish.

If you've been lucky enough never to have any problems with the existing law, Gareth, don't dismiss the experience of people who have lost sessions that they enjoyed because of it; and don't feel smug about the possibility that it might not happen to you, especially with the new law.

Obviously, if pubs choose to get their licences extended to allow "entertainment" that can be good; but there is no reason to assume that all the places where we might hope to play or sing will see it as worthwhile to do that. In which case we won't be able to play or sing there, without breaking the law, and putting both ourselves and the landlord in danger.

And of course it's not just pubs, it's any public place.