“We are talking about people who have fled to Denmark who are being split from each other. “
Interesting. Since Denmark only has borders with Germany and Sweden (via bridge/tunnel) it must be a bit grim in those two countries – sufficiently so that the asylum seekers have fled them. Otherwise they would have had their asylum claims heard there wouldn’t they (or perhaps elsewhere in Europe as I doubt Germany or Sweden was their first port of call).
Although the age of consent (to sexual intercourse) is 15 in Denmark, that country has a large number of laws relating to sexual activity with people under 18. It may be that the authorities there were not entirely convinced of the authenticity of some of the relationships they were being asked to countenance when housing the incomers.
As usual the liberal European authorities have tied themselves in knots because they try to accommodate the culture and habits of foreigners who often behave contrarily to their own domestic laws. Yes, most European countries recognise marriages made elsewhere. This means eleven year old brides from Nigeria would be recognised as “wives”. However, there are few – if any - European countries where sexual activity with a child of that age would be countenanced. So the authorities either split the couple up or condone under age sex. There’s no third choice. This is what happens when “multiculturalism” is encouraged and that's the root cause of the problem here.