The fear of elderly people or growing old is called 'Gerontophobia.' But quick question if I may?
Why not just type the very same question into Google and get an answer within seconds?
Gerontophobia - fear of old people.
Fear of Asians is called sinophobia.
If fear of gays is homophobia, then fear of straight people would be heterophobia.
Gerandortophobia
Anthropophobia.
Sociophobia.
Fear of people is called anthropophobia.
The fear of growing old is called Gerontophobia.
Nomatophobia
Its called 'phobiaphobia', which is the fear of fear.
because many people have a fear of themselves
Androchaetophobia is the fear of hairy men. Chaetophobia is the fear of hairy people. Androphobia is the fear of men.