I confess to feeding the squirrels they eat from the peanut bird feeder- but they aren't such a pest in the UK. Sadly, a long time ago they virtually wiped out the native red squirrel population in the UK . But they are here to stay and don't really cause too much damage in my garden. Where I worked before I retired was on campus in a park and there were albino squirrels which were beautiful to watch.
My elderly neighbor's son set up a squirrel feeder where they would have to open a 'door' to get a peanut. She had a great time watching them. Sad, she passed a few months ago, but he posted a picture of it on Face Book as it was her birthday yesterday. I don't like my squirrels. They mess up and eat up the little birdy nests although I find the nests an annoyance too when they build them in the gutters of your home.