I've declined, for myself as nhs staff and my children.
Nurses are not bad at taking advice, but are taught to seek a solid evidence base for everything they do. And not take the NHS press as gospel.
The evidence for herd immunity for diseases such as polio and TB are well documented, in unbiased reports taken over several decades with thousands if not millions of participants.
The evidence base for flu vaccination is near non existent.
onlinelibrary.wiley.com/doi/10.1002/14651858.CD004879.pub4
In order for herd immunity to work a larger percentage of the population need to be vaccinated than unvaccinated. The nhs aren't funding vaccination for all therefore should not be offering vaccines to low risk adults and children. But vaccination is expensive. Which is why the majority of research undertaken by pharmaceutical companies is bias.
The effectiveness of the nasal vaccine is reported to be 35-50% in children over 2years, dependent on which research you read. So half of the children who will receive the nasal vaccine will remain susceptible, whilst simultaneously gaining the ability to spread the flu, as it is a modified, not a 'dead' vaccine.
There is also research that shows that the flu jab effects anti coagulation therapy, which is a big issue for a lot of patients in the vaccine target group.
And personally, shit happens. Vaccinated or not, there is going to be a strain of flu that kills someone. That is what viruses do, and sometimes it's like crossing the road-you might just be unlucky.