After some perspective as feeling a little lost at the moment.
Have come to the stage (with not a lot of time left) to apply for secondary schools for DS.
He's done well and passed 11+, initially we were set on this particular grammar, however as time went on and we've had the chance to explore other schools it seemed we found other ( non selective) schools that seemed to fit the bill too.
We were happy to choose one of the other schools as our first choice, until a few family members have openly expressed how ridiculous that would be 
This decision wasn't made on our own, DS has openly expressed how much he liked the other school, and also (maybe this has swayed his choice too), he knows someone else from a sports club that will be going there too.
We haven't been able to see the grammar school in the same light (covid- unable to attend open day).
So AIBU to continue with our plan of applying for a space in other school?
YABU- he's worked hard and achieved the score so he should go to said school.
YANBU- as long as child is happy with school, they will flourish regardless of status.
Sorry for any typos, trying to multitask 