ICAO did forbid sum of ages greater than 120 but only a national or EU Court is able to decide if there is discrimination to be corrected. (Of course medical state must stay class I)
Check out EASA FCL.065. Pilots cannot work in commercial air transport if they are 60 or older and working in a single pilot crew, which for example applies to all rescue helicopter operations here. And over 65 it is not allowed at all. That is of course an age discrimination, however it is EU law and it will be interesting to see it challenged in court. One can still work in private ops without any age limit of course.