From birth to death we are to a greater or lesser extent deined by our age and stage of life. Take, for example our clothes. Department stores specialise and benefit frompeople accepting that some clothes are appropriate for babies, teens, middle age and older age. This has been challenged in more recent times BUT we still hear the criticism: 'mutton dressed up as lamb'.
Make-up deemed appropriate for teens makes an older woman look like a street worker.
The media constantly portrays youth and firm, slim bodies as sexy and the norm. This despite in some countries over 50% of the population being overweight.
Older people are socially constructed as sick, unsexy, undesirable and often simply as invisible.