Hello. It doesn't matter if the citizen is a senior or not. The strategy is to share the opportunity with clear and simple words after discussing the life with the people and what they want to do. Seniors often have hobbies and built a family and warm market so far. It's natural for them to wish to support as much as they can their children and grandchildren. This is a good hint - about additional income when doing their own hobby just to share few words about SFI.