The aim of this study was finding out what parents' attitudes are about mandatory vaccination of preschool children, and whether the parents' demographics and socioeconomic characteristics affected those attitudes. In parallel, the way parents were informed about vaccinations and vaccines was also investigated. Based on purposes of research, certain hypotheses are set. For the purposes of this survey, an anonymous questionnaire was created in which 68 respondents participated. According to the results of the study, most parents have a positive attitude about vaccinating children. Parents consider vaccination to be the best way to prevent potential diseases and protection for children. The positive attitude of parents is manifested in the fact that they believe that vaccination should be mandatory, and if vaccination was not a legal obligation, they would still choose to vaccinate their children. This attitude stems from parents having positive experiences with vaccinations, and any unwanted reactions or side effects were mild. Regardless of the fact that there is a certain fear of side effects, the attitudes that were examined using the Likert five-stage scale, related to the vaccination of children, confirm that most parents have a positive attitude about vaccination. The results obtained by the study showed that demographic and socioeconomic characteristics do not affect differences in parents' attitudes towards vaccinating children. Many parents consider that they are averagely informed about vaccines and vaccinations. Parents say the most of their knowledge about vaccines and possible side effects comes from doctors and online research. Furthermore, due to uneven opinions among health professionals, many parents resort to taking initiative and finding information on their own. However, regardless of conflict in opinion among health professionals that they come across, most parents still follow their doctor's advice since they consider that to be the safest source of information they have.