Most are constitutional monarchies in which the monarch is a head of state with no or very limited political power.

https://en.m.wikipedia.org/wiki/Monarchies_in_Europe

Not most, all EU member monarchies are constitutional monarchies.

The royal family is not above the law. They are just above people

Give me the name of any country - and I'll tell you why it is not really a democracy.

There's so many actual reasons to complain about lack of democracy at the EU level; constitutional monarchies are certainly not one of them.

Why the downvotes? A democratic country should not have kings and queens, regardless of whether they have real power or not. Why should a person be so special in a democracy just because they have the right ancestors?

They function as safeguards against a truly insane government. If they live up to that expectation I don't know but I suppose it's better than nothing.

I pay about one Euro per month for ours. I can afford it. The king also has very high approval rating. People don't want him removed.

In the Commonwealth at least, the monarch or their representative is basically just acting as the failsafe that decides if the government is fucked and needs to be turned off and on again.