Is time up for backyard fireworks? UK ministers weigh partial ban over noise concerns
(www.theguardian.com)
Have you considered: things celebrated by cultures other than white British people? Diwali, for example, which is probably the reason for people setting fireworks off in advance of and following nov5, since it lasts 5-6 days and takes place in Oct/Nov.
That said, I don't think people should be setting off (loud) backyard fireworks at all. It terrorizes animals, disrupts sleep, and endangers people.