Diver Dennis
Contributor
Should my mom or my significant other be prohibited from buying me a SCUBA present like a computer because she doesn't have a C-card? Hmmmm...
I think your heart is in the right place, but it is just not practical, and anything that could potentially hurt sales in this business is definitely not going to happen.
Gift certificates will work. A good choice, especially if the non diving buyer does not know anything about equipment but as you point out, tough to police on internet sales.
I would hope that there aren't many people stupid enough to buy equipment and try and learn to dive on their own but I'm certain there are some.