Vaccinations in Ontario have focused mainly on congregate settings (long term care homes, for example) and front line health care workers and first responders.
The general population isn’t receiving them in very many places yet. I think the wide-spread vaccinations of the over-85 group in the general population (rather than in congregate care) is expected to ramp up on or after March 15. Vaccinations for younger groups will be in 5-year successive groupings after each older age group has been offered their shot. They may jump right down to the 60-65 age group for the Astra-Zeneca vaccine and work down from there with that one.
Right now, if a person in Ontario were to receive their 1st shot tomorrow, their 2nd shot (and maximum immunization) could be as far away as early July. Ontario has decided to delay the second dose by up-to-4 months and use the currently available doses as 1st shots for more people.
I would not be expecting the hoopla in Ontario to be ended by May. The majority of people you encounter in Ontario in May will not have been vaccinated, unless something really changes with the pace.