how old are you? are you really prepared on having a family and settle down with him? how about on having a career? how about your personal life?
well, for me, i would rather listen to my family. they know what's best for you. yes, they like the boy but what they don't like is the fact that he's proposing to you even if he can't offer anything for now. and you know what.... if he really loves you... he would prove himself first that he's worthy to be your husband. he should at least have some effort to prove it to you and to your family. your family just wanted the best for you and he should realize that. if he really loves you, he would make an effort to improve his status and have a stable job first. (so that he could offer you something aside from his love.)
if he really loves you, he would not allow you to have the life he's having right now, but, instead, to have a better life.
i know that he's such a nice person. your family would not like him if he's not. but try to talk to him first before jumping to any decisions. i believe that he's a very understanding person.
cheer up girl!