My daughter married at the grand old age of 16! Her husband is MUCH older. They've been married 11 years now, and are happy.
Why did we allow it? That's complicated, our daughter was ill. Very ill. At the time there was no guarantee that she would survive until she was 18 and able to marry without our permission. We also talked to the vicar (family church), social services, police and a lawyer friend all of whom were clear that though very unusual, their relationship was healthy and if they requested the permission from a judge reports would support their wish.
In the end we agreed, mainly because we wanted our daughter to feel supported. She is severely disabled, and her husband is often away (army), but she has a live in carer and other help. She lives a busy, and full life, she worked through her A levels at home, then her degree, she works very part time (not much time), she's been skiing (in her chair), and has tried most of the things that other girls could only dream of.
I hate to admit it, but as a wife, our daughter has achieved far more than she would have done as a standard schoolgirl.
Therefore I do believe that there is a place for teenage marriage whilst obviously this needs to protect youngsters being forced into marriage.
Perhaps though, energies should be centred on stopping forced marriage regardless of age, afterall, are we saying that it's ok toa