Are football players dumber than soccer players?

Answer 1

The answer is probably the same as the the answer to the following question: Are people who ask questions dumber than ...those who don't? or for that matter ...those who answer?

Perhaps one should ask why a person would spend time asking a question which, clearly, would be impossible to answer since 'dumber' is subject to a wide range of measure types & definitions. Not a metric like 'height'.

In general, if I may be allowed to venture a guess here, I WOULD be willing to bet without hesitation or a doubt in mind that the vast majority of Football and/or Soccer players or any age or nationality are less dumb than the author of your question.