We moved into our house about 3 years ago, and there were some very well established palm trees (4 in all) in our back garden. We have a lovely ocean view, being up on a hill. Our neighbours have been in touch asking us if we can remove the palm trees because as they've grown, they've obstructed their view of (some of) the sea and they think it will lower the value of their property.
I like the palms and they are still growing so the view will return once they get a bit taller.
What's the general etiquette here, is it my responsibility to increase my neighbour's peppery value? Surely not?