Dane here. We don't have a minimum wage. We rely on structural remedies for improving working conditions and wages, and they work far better than a minimum wage. The UK, on the other hand, favours direct intervention. They've been increasing their minimum wage considerably over the years. The result appears to be aggressive wage compression. Meaning very little benefit to people who get degrees and accrue experience relative to someone doing an unskilled, minimum wage job. It also appears to have created a very unfavourable job market for the young. Why hire a young and inexperienced worker for £12.71 per hour when you can hire an experienced worker for £14? Young people with degrees appear to be particularly impacted, since they "wasted" so many years on degrees which yield very little benefit, and they cannot find a job. The UK also has very tough laws about firing employees, meaning companies are incentivised to not take a chance on a young worker.

To your point: yes, people who have a weaker bargaining position in Denmark earn less. However we also have generous social safety nets, so no one ends up destitute or hungry. Ultimately, I think wages should be between an employer and employee (with or without the assistance of unions - we like our unions). If an employee has fewer skills, less experience, is unwilling or unable to move for a job, etc, they should expect to be paid less. This represents materially different value to the employer.