Escorts might look, for some people, unnecessary, but there are hundreds of reasons why having guides available for all ages and traveling purposes can be very beneficial for tourism in general.
The biggest reason that comes to mind is: Aged people.
People of higher age, that are past their sixties, for example, might want to travel after retirement and see the world for themselves, maybe something that they did not do during their youth. Sometimes, they can’t fly alone because of some health issue or complication, and their families are busy with work, or simply can’t come with. In those cases, escorts are especially useful.
There are even escorts that have specialized in taking care of aged travelers. Most of them understand that the people who need assistance the most are those who are past their retirement age. That does not mean that most of them have to actually take care of their clients: Most of these travelers just want someone to guide them around and talk to them while experiencing different countries and cultures. In fact, most escorts love going to trips with high-aged partners, just because most of them are very light-hearted and kind.
If you ever wanted to work with traveling, being a guide or an escort is a fantastic experience. You can specialize in guiding teenagers, if you like having more extreme and energetic adventures, or you might want to take a more pacific trip, with adults and seniors. In fact, both roles can even swap with each other! You can actually meet old clients that just want to go camping.