Joining the navy dilemma

I’m 27m and I’ve been debating enlisting for awhile now. I have people who are very supportive but a lot people tell me not to enlist. I have close people trying to get me to work at the post office and saying that’s better than wasting my time with the Navy. Been feeling kind of lost on what to decide. Not needing anyone to decide for me but what’s been the big reason for anyone out there to enlist? Was it worth it?