Should I split the internet bill?
Maybe. Why are you splitting the internet bill?
Me and my whole family think it is unfair to be charged for something that my sister is not using
It's thrifty to split bills for services that multiple people use. It will help save money.
I will get the people on board then gather the money.
Good. I hope it works out well. And that by sharing the cost you will be able to save up some money.