It&#x27;s possibly a safety concern.  With paragliding, which is largely self-regulated by the USHPA <i>(FAA airspace use regulations notwithstanding)</i>, I don&#x27;t believe you can technically take payment for a tandem flight unless the passenger is a student pilot, at least on paper.[1]  IIRC, this is to discourage pilots with a tandem rating taking undue flight risks to make money on giving rides.<p>[1]: <a href="https:&#x2F;&#x2F;www.ushpa.aero&#x2F;4721.asp" rel="nofollow">https:&#x2F;&#x2F;www.ushpa.aero&#x2F;4721.asp</a>