Illegitimacy alone rarely prevents strangers from interacting. [causal]
A determination that any given encounter would not be legitimate does not necessarily lead to a negative decision. If it did, strangers would rarely talk to one another. Such a determination is simply thrown into the hopper and weighed against desirability and appropriateness.
Lyn H. Lofland, World of Strangers_ Order a…, loc. 1003