I am pretty sure most if not all other Euro kings/queens retired and let their kids take over. I know it was true in Spain, Netherlands, and Belgium as examples
The Netherlands and Luxembourg both have a tradition now of the monarch retiring: three Dutch queens in a row, and Grand Duchess Charlotte and her son Grand Duke Jean in Luxembourg. Albert II in Belgium (in 2013) started a new tradition in his country, becoming the first Belgian king to voluntarily abdicate. When Juan Carlos in Spain abdicated the following year (2014), however, he was already engulfed in scandal (financial corruption, an embezzlement scandal involving his daughter and son-in-law, elephant-hunting with his mistress in Botswana during the Spanish financial crisis, etc.), and while he publicly declared that he was retiring so that his son would not “wither waiting like Prince Charles,” there is a section of the populace that believes he got out while the getting was good. (Juan Carlos now resides in the United Arab Emirates, from where he and his lawyers continue to battle allegations of fraud, and King Felipe has renounced any financial inheritance from his father.)
No monarch of Norway, Sweden, or Denmark has abdicated in the modern era, nor has any Prince of Monaco or of Liechtenstein.
Here we have Queen Elizabeth and Meghan from the French Charlie Hebdo (known for the 12 deaths from the 2015 Islamic terrorist attack):
It also has to do with sharing the burden of the Monarchy. There are still many things that Elizabeth is perfectly willing and able to do, and there are other obligations that Charles and others have taken on. Why should she burden the rest of the family by abdicating? Especially with Harry leaving, there are fewer hands to share the work.
how hard is it to cut ribbons and shake hands and watch people bow to you?
Still interesting Chuck dumped Diana for his current wife. But I guess he never wanted Diana to start. Back then Camilla was not really young and glamorous and was married until 1995 .
How hard is it to smile and nod and shake hands with the guy who most likely had your favorite uncle murdered?
That’s the thing with being a royal: you cut the ribbons and shake the hands of whomever the government tells you to, regardless of your personal feelings in the matter. Charles has been photographed with Mohammed bin Salman lately, because the UK government and the Saudis are allies. The Brits, for example, eagerly courted having Saudi Aramco listed on the London Stock Exchange, so Charles got to play nice-nice with the Saudi crown prince. When Charles criticized a government design for a new addition to the National Gallery in London (“a monstrous carbuncle on the face of a much-loved and elegant friend”), it lead to arguments in Parliament and in the press as to whether that was an improper intervention into the political sphere, and whether a future monarch should be allowed to express opinions publicly about such subjects. When Prince Philip became the first British royal to visit the Soviet Union, in 1973, he was given a list of topics he could talk about (the Soviet medal haul in the 1972 Olympics, space exploration) and those he could not (the fate of his mother’s relatives at Yekaterinburg in 1918, for example). In fact, that royal visit became a political football between the UK Foreign Office and the KGB: one of the Russian organizers, for example, had been expelled from Britain as a spy a few years earlier, while the Brits contemplated (but ultimately passed on) slipping an MI6 agent into Moscow as part of Philip’s retinue.
US presidents also smile and shake hands with really bad people. Such as little rocket man from north korea.
True. However, nobody ever claims that the US president has an easy job.
Oh yeah, the guy who’s not answering Biden’s phone calls. 
some nutty person says she wants to run for president as a Dem. Maybe she does but I don’t see who would vote for her.
Harry taking job at Silicon Valley startup