Who pays the price when we say that the influence of companions is always necessary to choose a destination?
Often, the small actor like a single mother who must travel for a family emergency does not have this luxury; her destination is dictated by necessity, not by a group.
The personal motive or financial constraints mean that one can very well choose alone, for oneself, without anyone else having a say.
The influence of companions is a variable, not a prerequisite for destination selection, especially when budgets are tight or objectives are very personal.