The 50% airline discount (for residents 65 and older) turns out to be somewhat of a red herring. For flights originating in Ecuador, the discount is taken from the highest base fare, plus regular price for all the fees and taxes. The savings can still be up to 30%, but I’ve honestly found cheaper fares by diligently searching through Kayak.
Cultural events (sports and movies)–yes. Public buses (both local and countrywide)–yes. Utility bills are discounted only if you own your property. If you rent, the bills are in the landlord’s name and you get no credit.