In most cases, Germany’s Family Reunion Visa is not available for parents of adult children. However, under exceptional humanitarian grounds, elderly parents may be allowed to join adult children if they require long-term care and no one in their home country can provide it. These applications are rare and reviewed on a case-by-case basis. More commonly, the visa is granted for minor children to join parents or for spouses to reunite. Legal advice is often recommended in such cases.