This is an option for those who intend to have children later in life and those who might become infertile due to certain illness or treatment such as cancer, chemotherapy etc.
Since fertility declines with age, and more and more people are choosing to prioritise other life aspects such as career, haven’t found the right person to start a family or just mentally not ready to expand family.
Fertility preservation or social freezing is a considerable option for people to freeze their eggs and sperm until they are ready.