Man, this is just not an accurate stand-in, though, _because_, well, Arizona has literally over 500,000 residential pools. It's actually one of (if not) _the_ highest pool-per-capita rates.
And because of that, drowning is the leading cause of death for children 1 to 4 years old in Arizona.
As a result, parents here are fairly fastidious about early childhood swim lessons. It's a _big_ deal for us. We've had both of our kids in lessons as early as a year, but a lot of folks start at 6-9 months.
If anything, the distributed nature of the many many many many _small_ bodies of water makes the drowning problem more pervasive and dangerous. An ocean is... well, an ocean: its availability for extremely small children is limited by geography, and many areas where you might take small children are policed by professional lifeguards. Backyard swimming pools, on the other hand, can be a lurking danger literally over your neighbor's wall. My parents had a neighbor one house over who had a 4 year old drown in their pool... from one house further over. He had stacked chairs against the cinderblock wall and climbed over while his grandfather was watching him but dozed off. Even if you don't have a pool in your own backyard, it's a risk here in Arizona.
