If the motorcycle taxis in Thailand are driven anyway like the motorcycle taxis in the Philippines, then I don't blame you one bit for wanting to wear a helmet and leathers.
They probably look askance at you because it may seem as if you are pre-judging them as bad drivers.
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.