people's life/lives?

[palinkasocsi]

Dear Friends,

Which of the following is correct:

Twenty years ago these modern inventions were not parts of people's life/lives? or ... were not part (singular) of people's life/lives?

Thank you very much.

Palinkasocsi

 

[bhaisahab]

Dear Friends,

Which of the following is correct:

Twenty years ago these modern inventions were not parts of people's life/lives? or ... were not part (singular) of people's life/lives?

Thank you very much.

Palinkasocsi

"...part of people's lives".