Louis Vuitton inviting them to their Summer 'X' exhibition.As of 2020, Ethan and Grayson are 20 years old.Ethan and Grayson's father, Sean Dolan, sadly passed away from cancer in January 2019. The pair first revealed their father's diagnosis in 2016 and, since his passing, have both written tributes to their "best friend" on Instagram.In a heartbreaking post, Grayson wrote, "I miss you so f--kin much already Dad.