Vaccination presently proceeds at a rate of ~30-40K per day (excl. Sundays). If it says like that, by June-July the number of vaccinated people in Greece will be around 3-5 million people or, at best, 30-50% of the population. Far from "everyone", yet there will be a visible effect on infection rates, certainly not to the level of feeling safe in Mykonos and elsewhere but a very good development for the Public Health Service.