Denmark and other countries are discontinuing the vaccine mandates because of the adverse effects.
Some further explanation is here called for about the situation in Denmark.
In late April of this year, Denmark paused (but not cancelled) its vaccination program. This move had nothing to do with any adverse side effects of the COVID-19 vaccines. Rather, it was felt that with the arrival of springtime, plus the already high levels of vaccination in that country, there was little purpose in keeping the program going through the spring and summer period. However, even when that move was announced, the Danish Ministry of Health mentioned that the program would likely be resumed in the autumn of this year - at least for those 50 years of age and over.
This is in fact what subsequently did happen, according to a recent announcement from Denmark's Ministry of Health, (dated 13th September 2022).
https://www.sst.dk/en/english/corona-eng/vaccination-against-covid-19
Note also that this revived immunisation program is not limited to the 50+ age group - at risk individuals who are younger than this are also included.
Another thing to note is that while Denmark did cease offering the Moderna MRNA.0 vaccine to those under 18 years of age, it still continued its use of the Pfizer/BioNTech vaccine amongst that age group.
There has been no blanket ban of COVID-19 vaccines in Denmark, as some reports may have suggested.