I got married 2 weeks before my 22nd birthday. I was with him for 3 1/2 years. Bout to celebrate our 14th wedding anniversary but been together 17:). Maturity is key, but also knowing you're marrying for the right reasons too. Many things to think about. IMO
30. Really Im not sure of an exact age but I think the individual should have time to experience life solo and accomplish a few things. College, job, travel, heartbreak, living on their own without parents, etc. then maybe settle down so they know they didn't jump into anything.