Because, as I stated before - it was 1 of the 2 pillars that basically treated all CDN's the same in the past. OAS and Health Care. It's looking like its only going to be Health Care going forward.
If its going to be stripped away from so many Canadians, I will say again the OAS needs to be scrapped entirely and rolled into GIS - Guaranteed Income Supplement and treat it as a welfare program going forward.
OAS is overwhelmingly based on length of time living in Canada, over 18 to 65, which speaks to 'everyone', not a select number of people. I would suggest that well over 97-98% of all retirees receive some form of it today. That speaks to it being 'for all' - just like health care.