Re: Would you let your kids have a ‘relationship’ before marriage?
I’m not a parent nor am I married yet, but I will answer any way 
It is strictly forbidden to have intimate relationships with people of the opposite gender until you’re married. The Prophet Muhammad (saw) even said that you may speak with a member of the opposite gender in the public as long as you are not alone.
Would I allow my children (i’A) to? No, never. Astaghferullah I’ve had more relationships than I can remember and I was always around all types of trouble, but I’ve found a much better path for myself now m’A se. I was born here in the US, been here all my life, but my parents never forced Islam on me. For a couple years I chose to be agnostic, but I found my answer again in Islam and I rightfully chose it on my own. My children will be raised Islamically (i’A) and when they are older, it will not be forced upon them so that they can rightfully make the decision on their own, as my parents allowed me.