After we learned to plain weave cloth, one of the very next things we must have learned how to do is weave another color back and forth on the weft, creating the first striped textiles. So, stripes and us as a species go back a long way indeed, deep into our own prehistory. Perhaps that's one reason why stripes continue to have such consistent influence in the Attire language. Certainly there are no cultures anywhere on earth that do not employ this basic design concept.
It must also be said that in terms of fabric production, stripes are easy to do, so they get a lot of play. Add to that the layer of familiarity we have with them, and its natural that we would go to them constantly.