I don't think that this question can really be answered unless you have actually carried out the experiment as it was described.
From what I've heard, one's ticklishness is developed very early in life. People who weren't regularly tickled during a certain period in formative years tend not to be as sensitive as ones who were. And the circumstances whether or not a person was tickled during that particular point in their life can vary for many reasons ranging from cultural norms to crisis and conflicts in a country where a healthy social development wasn't possible.
Not to mention that in adulthood, factors such as good nutrition, sickness, nerve damage, and whether or not you own shoes or your skin is exposed to harsh elements affects your ticklishness. And of course, your current mood with a person matters.
We're all mostly looking at this from the perspective of personal experiences with people in only a few possible cultural circles we've been in. Also, we don't seek the experience for scientific purposes, so most of us USUALLY only look for them with one preferred sexual preference, and with certain qualities we desire. As fetishists, not scientists, we have completely either left out or never pursued an assessment of the ticklishness of people we were not attracted to.
My point is that regardless of our obsession with tickling, nobody's opinion here is really based on an assessment of all circumstances and all the groups of people on Earth.
It would honestly be a bit arrogant for any of us to come to a conclusion about the GENERAL population based a handful of experiences in limited countries and cultural circles.
But based on the results of our experiences, it seems that people who are tickled when there is mutual friendliness or sexual attraction, (or at least a state of relaxation or positive excitement) rather than defensiveness, there is an increased likelihood of SOME ticklish reaction.