It is convenient to travel with group tour
You cannot deny this. With group tour, there is always a minivan or a bus waiting for you all the time. You will get chauffeured from places to places without the inconvenient of waiting or taking a taxi or public transportation.
This reminds me of our trip to Japan where we spent hours on the train traveling from one city to another. In average we spent three hours in traveling time on the train and they do not stop to the front of the places of interest and you still have to walk.
We walked at least six to eight hours a day while traveling in cities in Europe and Asia. You cut off that time if travel with travel company.