After his professional career, Johannes has dedicated his time to initiatives regarding elder people as a volunteer. Among others, he started the study of voluntary end-of-life legislations in the world with a focus on the Netherlands. He published three books, in Italian, regarding the Dutch legislation and the application of euthanasia and medical-assisted dying. He manages a website regarding the development of the legislation on euthanasia in the world. He is a member of the Counsil of the Associazione Luca Coscione and is its representative at the WDRtDS. He participated as a speaker in several conferences both locally and internationally and promotes meetings at local level Italian end-of-life legislation for older people in Northern Italy.