FlixBus has specific policies regarding unaccompanied minors traveling alone. Generally, children under the age of 16 must be accompanied by an adult. However, young passengers aged 16 or older can travel without an adult. It is important for parents or guardians to be aware of these regulations and ensure that younger travelers are supervised accordingly. Additionally, some routes or circumstances might have variations in policy, so it is always a good practice to check the official FlixBus website for the most updated information and any requirements that might apply to your specific trip. Safety measures can vary, so familiarity with these guidelines will help ensure a smooth travel experience.