Who??

This riverfront walkway is a favourite site for elderly people in the mid mornings and for families with children and prams in the afternoons.
My mother likes pushing her wheel chair when we go there because it is sunny in winter and it is  a quiet place; besides she usually meets some friends to chat with for a while.
When I see so many elderly people in their wheel chairs or with their walking frames or just their canes - most of them with an accompanying person - , I wonder who will look after me and people my age when we get much older than now,  and where we will enjoy our morning walks; there will be so many of us then!