Question

Based upon information gathered from television and movies, one might assume that coming from a same-sex-parent home is not common. a person's identity may be influenced by these sources, which are referred to as

Answer 1

this situation is rereferred to as: generalized others.

in social science, generalized others is a situation where people are inclined to do what other people expected of them rather than doing what their own instinct and principle told them to do.
When someone is seeing a different-sex couple displayed as normal in tv over and over again, they will create a conditioned perception that it's how it supposed to be in actual society.