Diving seems like one of the recreational activities where it is easy to end up doing something much riskier than you intended (another I'd say is alpine hiking): 1. Being able to easily sign up for a dive at an all-inclusive resort makes it seem more 'fine', you get a false sense of security that you will be taken care of. 2. Dive shops tend to be fairly relaxed with checking if someone is properly qualified to go o…
Not that I’ll never go with a PADI dive, especially if it’s the only game in town where I’m visiting. But I generally bias towards NAUI, and would highly suggest anyone new go with a NAUI cert.