With that in mind, I still advise NOT going into the field if you already have a stable career with above average income. It will take at minimum 10 years, of doing little else, before you will become a fully independent physician. Although some of this time can be shortened if you choose to become a PA/NP (sorry I don't know their equivalent in Europe, they are essentially clinicians with shortened training with some but limited individual practice autonomy).
If you work in a hospital every day is stressful. It is increasingly thankless although you still bear the brunt of responsibility and liability. You are also interchangeable.
I don't know if this helps explain my perspective of it's just a weird analogy, but being in a hospital feels like working in a grocery store now. You're told the margins are slim and you need to move produce (patients) faster out the door so that more produce can come in. A lot of the times the produce is not safe to sell but the managers pressure you to do it anyways. You could ask the managers (who were mostly at one point produce managers) to sell it but they would never. But if that apple you sold was mealy or at a rotten core its going to be on you.
There are a large number of healthcare related jobs, such as nursing, psychotherapy, physical therapy and such that you can get into with less training and that you might even like better.
> Alt account for obvious reasons. [...] I have to be realistic about my age, [...] For the sake of my privacy and well-being,
These comments give room for pause. It's not obvious why you need to safeguard your privacy. They suggest that you may be dealing with feelings of shame or even guilt. You will be the oldest guy (or girl) in the class, your colleagues will be younger than you, and people will question your choices. Can you deal with it or is it too shameful? Only you can answer this question.