I was 21 the first time, way too young in my opinion, for me anyway although i do think you can get married young and be very happy. Just didn't suit me and looking back i married for the wrong reasons.. The 2nd time is coming up for 2 years ago so 36. Much better, and we are very happy but we waited 9 years before taking the plunge, 2nd time around for us both. I think your mid 30s are a good age to do it but it really does depend on the individual and your needs and wants out of life.