Kids and vaccine

[Faciadipasta]

Any health care workers on here?
I have 8 year old twins and can't decide whether they should get vaccinated or not. They have both had covid twice and neither was particularly ill either time.
I know the party line is that they should get it but really should they?
If they hadn't had it yet I would def get them vaxxed. Is there any benefit though once they've had it?
Vaccine doesn't stop you catching it, only becoming seriously ill. They didn't get seriously ill anyway.
Vaccine is more effective than exposure to wild virus (apparently) but it wears off.
Having said that what if a new strain came along that was more dangerous to kids? Would having had the vax offer them more protection against it than just having had it before?
I just don't know what to do for the best and I feel like I can't trust what I'm told by the NHS in an official capacity because they just have to speak the party line (a bit like with breastfeeding!!)
I just want to do what's best but feel like there's no way to know what that actually is.
Any help would be very gratefully received. Thank you

Why would you vaccinate them against something they've had twice and recovered from? With a vaccine that's still tailored to the original strain rather than a more recent? It just seems needless. Also, no vaccine has a nil risk of injury. Generally the risk of injury is so small and even more so when stacked against the risk of the disease that it doesn't matter, we give them the jab because the benefit far far outweighs the risk. But in this case the disease doesn't really pose any risk to your children, so it's a bit of a different calculation.