Family is so stubborn?

ok so i live with my mom my dad and my brothers and sisters.all my life my mom would say when my brother and sister came from mexico. we would go to circus circus and disney land its been a year since my brother came and 2 months for my sister. we haven't gone ANY WERE not even the circus and my mom says we will go to virgina city nv and never does. i really want to go to six flags and my step sis said shel take us but hasn't .and they have the money why wont they go they are so lazy.