The principle of non-discrimination is the basis of the modern system of protection of human rights and freedoms, and all the most important international documents regulating the protection of human rights and freedoms advocate the aforementioned principle. Age is one of the grounds on which discrimination is prohibited. However, this does not prevent age discrimination from increasing, as evidenced by numerous studies. The development of technology and digitalization have helped to put the elderly in a discriminatory position because of their age. It is considered that they do not have the opportunity to keep up with younger people, and for this reason they are prevented from employment. Age discrimination does not only apply to the elderly. Young people are also exposed to it. Lack of experience and skills are the most common reasons why employers discriminate against young people and do not want to hire them. In Croatian legislation, discrimination is prohibited by the Constitution and more extensively regulated by the Anti-Discrimination Act, which is in accordance with the anti-discrimination legislation of the European Union, one of the most advanced legislative systems in the world.