Inheritance dispute

Hello Leon,

Our  grandmother recently passed away and left a huge amount of money to be divided equally between the grand children. Our parents are already wealthy and don’t need the money. There are 7 of us grand children. We will receive around £300k each. In recent years, our family dynamics have changed and we have had some “addition”.  Although  my grandmother knew the new additions long before she passed away, she never changed her will. So in my opinion, she never wanted them written in. My parents have sat all the grandkids down and asked us to give a small percent of our inheritance to the new additions, but for the for life of me, I don’t agree. Am I the bad guy here?

I look forward to our session