Twilight has done a lot for the better of Equestria. And she has done a lot for her nieces and nephews too. Baby sitting, working, loving, cherishing every moment she has with these ponies because it's been her experience that these ponies are gone before she can blink. Twilight lives and loves just like any other pony. And she is responsible for what ponies know as normal now. Not to mention all the technological advancements made by her family. It's been busy, that's for sure.