The subject matter discussed in the article comprises the issues related to social relations, in particular with making life choices by young adults: the decisions related to the choice of friends, the choice of a life partner or a consent to the marriage of the child with a person of a different religion or nationality. The research with the use of the survey method was conducted among students from the Czech Republic, Poland and Slovakia, living in culturally diverse areas. The surveyed students show an open attitude towards Others in terms of religion. The results of the study confirmed the earlier tendency to choose close acquaintances and friends, regardless of their religious denomination. Students are a little less willing to choose a life partner and are aware of the difficulties encountered by mixed marriages.