Even for kids with a small age difference you have to consider whether either one of them (but primarily the girls) had a say. I think in syrian camps girls were being married off as they were then seen as protected as a married woman. Ultimately we don’t believe in the UK that a child can fully consent to marriage.
I imagine some of the girls were happy to have some breathing space form a husband not of their choosing and the possibility of exiting a marriage. Womens prospects from more traditional societies are drastically curtailed upon marriage, can I go to uni, can I get a job etc.some of these girls would need their husbands, in-laws consent. I wouldn’t want that, if i had left syria and landed up in a society like denamrk damn right I’d want a life of my own and I’d want what Danish women have,
I have no idea of whether she deserves to be in prison but i agree with the policy. I come from a background where arranged marriage was normal for a long time (not so much now) men wield enormous power within their families.