I would say it is a minimum of two years, and probably more in many cases. I’m probably as mature now as I was when I was twelve.
I still believe that farts are funny.
Personally I think any contract should be void if one or both parties are incapable of making an informed decision at the time.
I think the 14 day cooling off period should be applied where any such contract is concerned.
I have always been close to my Uncle, and had celebrated his wedding anniversary to his second wife, along with my two new cousins, for several years.
When he remarried, the younger girl was eleven and I was twenty one. It was a full year before I realised that for some inexplicable reason, she had a schoolgirl crush on me.
When she was seventeen, she asked me if I wanted to “go serious” with her, and to the surprise of absolutely nobody on either side of our family, we started dating.
I planned to propose to her when she was eighteen, on the anniversary of the day we first met. She hadn’t a clue, until her mother told her what she thought I was intending to do.
Instead of going out with the rest of the family, I persuaded my Lovely Cousin to go for a meal at a local pub. I had intended to get down on one knee in the pub restaurant afterwards, but sometime between the main course and the pudding, she started giggling. I asked her what was going on and she said, “Mum thought you were going to propose tonight.”
Well my jaw dropped, and she realised at that moment that I had indeed intended to ask her to marry me, but instead I made her and her Mum wait another fortnight.
Bear in mind that some weeks before this, she had asked me if I was going to propose to her at some point. I reminded her that she said she had wanted a long courtship, and that was exactly what I had been doing.
“Oh,” she said, “I meant a long engagement.”
“Okay,” I thought, “I had better get on and propose so we can start this long engagement then.” She should not have been surprised by, and indeed should have expected, a proposal in short order.
After the meal I took her to the pub where her parents and sister were celebrating my Uncle and Aunt’s wedding anniversary. Her Mum was all bright eyed and expecting news of our engagement, but was sorely disappointed when it never came.
I believe afterwards, my Uncle gave my Aunt a right telling off for “opening her gert wicket”.
A fortnight later I caught my Lovely Cousin completely off guard one Friday night whilst saying goodnight to her on her doorstep. I didn’t get down on one knee as I had originally planned to do because I was outside on her driveway and she was inside, two steps up. Had I taken the knee, I would have ended up proposing to her thigh instead of to her face.
We married a year to the day later when she was still a teenager and I was nearly thirty.
That was over thirty seven years ago, and we have yet to have our first argument. She is still far more mature than I will ever be.