It would help if you read his entire opening post. He clearly asks if the Hobie 16 would be a good boat to learn on. IMHO, they're really not great boats to learn on, they're fun boats, but there are much better boats to learn on. Beach cats, as a general rule, are way overpowered and tend to capsize a bit too readily for any real learning.
They're a handful with crew that knows how to use the trapeze, and a pain in the butt if you're singlehanding them and trying to learn how to sail at the same time. Anyone trying to learn on a H16 would probably spend more time flipping the sucker back upright than sailing. That isn't a good way to learn IMHO.
The Hobie 16 also tends to pitchpole when running. That's not only dangerous, but really discourages the novice sailor.... as only fear can do.
In many ways, the sailing dinghies I mentioned are far better learning vehicles. They are very responsive to sail trim and boat balance, but tend to be a bit less capsize prone, since they're not quite as overpowered as a Hobie 16 is. Here are some stats:
Length: 16' 7"
Beam: 7' 11"
Mast Length: 26' 6"
Sail Area: 218 Sq. Ft.
Weight: 320 lbs.
Beam: 6' 6"
Mast Length: 26' 2"
Sail Area: 177 Sq. Ft.
Weight: 700 lbs
Beam: 6' 9"
Mast Length: 28'
Sail Area: 191 Sq. Ft.
Weight: 850 lbs
As you can see, the Hobie 16 is the shortest and lightest of the three boats, but has the greatest sail area.
BTW, I think a Hobie cat is probably a better boat for a child to learn on than an adult, since a child will weigh less proportionally, and will be able to get away with a few things on a H16 that would dump an adult. I grew up sailing on the H14s among others... and had a blast... but then kids don't have as much inherent fear about getting injured...since they tend to believe they'll live forever.
My question is this: can a regular Hobie 16 be a good, stable learning boat or is it pretty much just for racing and showing off?
Who cares, Hobies are great fun and good learner boats too. He's not asking about FS or lightnings.