Yes. Travel insurance is mandatory before you leave.
In this case, it is up to every individual traveler to make arrangements for his/her own travel insurance, and it is worth pointing out that entry requirements differ according to country. Certain countries require travel health insurance for all foreigners visiting a particular nation.
At least, your policy must provide coverage for medical expenses and emergency repatriation. There might be some variations in the coverage you need, depending on your trip, so make sure you read the section on Travel Insurance in your Essential Trip Information. You will not be able to participate in the trip unless your trip leader has verified your policy number and the contact details of the insurer, which will be noted on the first day of your trip.
Given the fact that the quality, accessibility, and associated costs of healthcare can differ dramatically globally, the need for travel insurance goes beyond being a mere formality, playing a crucial role in being a responsible traveler.
In the case of travelers from the United States, the European Union, or Switzerland, travel insurance cannot be mandatory. However, it is highly recommended. Those from the aforementioned countries, if they opt to travel without insurance coverage within their own region, must sign the ‘Travel Insurance Waiver Form.’ This is in the sense that they accept full responsibility for the expenses incurred.