The 9 Christmas trees won't look good. Anyone that has their name spelled out taking up half a tree, has no taste. Lots of people have a small decoration with their names on, we have decorations with each of the childrens names on - but they aren't visible from space and aren't really noticeable once on the tree.
I know some people would hate my tree, there is no theme and each child (and usually me) chooses a new decoration each year. We even take a picture of each new decoration with the child so we can remember who chose which one. There are random things that they have made at school. Any colour goes. But we love looking through everything each year. For the first time we're having 2 trees this year and in a few years will have plenty of meaningful decorations to go on both but for now the second isn't going to be as exciting - but we do use each area equally so felt we wanted something. 9 trees, bought all at once, probably decorated with the entire christmas aisles from B&M and home bargains, will just end up pointless and soon to be lost in the garage of doom. There will be no visits from family and friends except maybe Jane and Steve when they need to come and cook the Christmas lunch.
And if they do end up getting a kitten, with 9 trees around the house, good luck with that!