People who met and became acquainted with at least one gay person were more likely to later change their minds about same-sex marriage and become more accepting of gay and lesbian people in general, finds a new study. 'Contact theory' suggests diverse friendships can spark social transformations.

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People who met and became acquainted with at least one gay person were more likely to later change their minds about same-sex marriage and become more accepting of gay and lesbian people in general, finds a new study. 'Contact theory' suggests diverse friendships can spark social transformations.