Dakshina what is your sister idea? She's happy? Probably you will have the same experience as her.
Personal opinion: I value a lot personal freedom, so for me there is nothing worse than losing it. But I learned that there are people who think, legitimately, that a nice, easy, comfortable life, is much better than been free. So maybe it is the case for you, and you can achieve your heart desire this way. Maybe your mother and sister are happy this way, and you see their example. It's up to you.