There’s no way to make a blanket statement one way or the other. It all depends on the expected benefits and the expected costs. And these vary from person to person.
Things to take into consideration:
-How reputable is the university in this degree program?
-Will having this degree make me more employable in the future?
-How much more income can I reasonably expect to generate with this degree?
-How much fun will I have?
-What skills will I learn while I’m there?
-Will I have a strong network when I graduate?
-What else could I accomplish in those four years?
-How much is the degree going to cost?
-What other expenses will I occur, in addition to tuition?
-Can I get other people to help pay for this (via scholarships, for example)?
-What kind of debt will I have when I graduate?
-Are there other lower-cost options I could pursue (in-state schools, a junior college for two years, etc.)?
Going to Harvard on a full academic scholarship is probably “worth it”. Taking out RM 150,000 in loans to attend an unknown university with no reasonable job prospects for that major is probably “not worth it”. Usually, the circumstances are somewhere between these two scenarios.