You are not young. Things become much more serious when we are in our 30s. Those that are saying just go with it are not really considering just how hard it is to make another strange country home - for life.
It might be different if you didn’t have a family that you are very close to, long standing friends, a career. A life and a community you adore. But you do. They are priceless and invaluable things in life. Irreplaceable in Denmark or anywhere else.
Its important to look at all
sides and Denmark has plenty of disadvantages too. I actually think Scotland is a warmer, kinder place to raise children myself and having children is a major challenge for any mother for the first few years, you would have to overcome many more challenges in a different country. A country is much more than lots of cheap childcare and cycling. These things are available anywhere. The Scottish humour, culture and the extensive education opportunities are not so easy to replace! Nor are your roots and sense of belonging.
You have to really love a country, its people, its culture, to speak the language fluently, to have a clear career path, to be able to fit in long term. Simply thinking it’s okay is not enough, given how much you will sacrifice.
I have been there, and found the adjustment very hard once in a serious relationship. The novelty wears off quickly, and I did one the language and I had built a life there with many friends and connections. In the end there were too many differences, and I needed security not romance. I wanted familiarity and comfort when I was pregnant not adventure and the unknown. I wanted to feel ‘at home’ and not homesick and wishing things could be different.
So I ended my relationship. it was hard but for the best.
I met the most wonderful man soon afterwards, and didn’t need to compromise on anything that was important to me. For me, it was the best thing I ever did. Painful as it was ar the time.
Whatever you do - don’t expect people to be willing or able to constantly fly out to see you, it tails off quickly.
Secondly, don’t underestimate how exhausting it is to fly regularly with babies and children. You may not have the strength for it, or the funds. Travelling away from home is reallyhard work with pre school dc. It becomes harder still to convince older children.
If you decide to go, go with your eyes wide open. You may never come back. Or be able to.
You don’t actually sound like you particularly want to do this, and you would only be doing it for him. Which are the wrong reasons to emigrate to another country in my view.