My late parents sold the home I had grown up in when I was in my first year at university, it had been in our family for 5 generations (since it was built) and although I was naturally emotional I understood since my fathers health had deteriorated necessitating early retirement from work at age 60. It never occurred to me even as an only child to object!
My own children are urging me to sell my house! and to get somewhere easier to manage now that I am recovering from cancer and find the constant upkeep requirements of my Victorian house a worry.
I would advise (assuming the house is not tied up in a trust preventing your friend from selling it) that she is firm with the children they definitely sound like they hail from the entitled to brigade!
Times article claim that Waspi women are tone deaf and should read the room



if her children aren't very happy with her decision, you can show them this thread and us GN's can take the blame.