Emile Ratelband, 69, wants to shift his birthday from 11 March 1949 to 11 March 1969, comparing the change to identifying as being transgender. Why not your age?
On Tinder, he says he gets no responses from prospective ladies - all because of his age. If I'm 49, then I can buy a new house, drive a different vehicle.
Ratelband argues that he feels two decades younger than he actually is - doctors told him he has the body of a younger man, he says, and while in most cases that compliment is rhetorical, Ratelband is taking a more literal approach.
Mr Ratelband's case has now gone to a court in the city of Arnhmen in the eastern Dutch provice of Gelderland.
Ratelband said during the prosecutor told him "we need to know your biological age to control you", which he said is "exactly the problem".
"You can change your name".
"I feel much younger than my real age", he added, "as do a lot of people".
Prince Charles Vows Not To Meddle As King
In the scene, Prince William agrees with his brother, saying: "Yeah, I think it probably was a bit and I think it's a negative message".
The Dutchman also said he doesn't want to lie about his age on Tinder when trying to meet women and officially having it reduced by 20 years would solve this problem. "Nowhere are you so discriminated against as with your age".
The single father, who said he has tried in vain to stop his basic pension, told the tribunal on Monday that his petition was "legitimate", likening his bid for a legal remedy to people who register a change of official gender.
Ratelband says his legal appeal is consistent with other forms of personal transformation that are gaining acceptance and government recognition in the Netherlands and around the world.
According to Ratelband's claims, companies in the Netherlands are reluctant to hire people of his age as consultants.
The judge argued what would be of Mr Ratelband's first 20 years if he was to delete them from his documents.
"For whom did your parents care in those years? Who was that little boy?" he was quoted as saying.
Mr Ratelband, a media personality and motivational guru, converted to Buddhism earlier this year and is a trainer in neurolinguistic programming.