Any part of the kid covered by the wetsuit does not require sunscreen
choosing high-visibility colors can make a kid easier to keep an eye on both in and out of the water, vs being mostly human-colored plus swimsuit
with multiple kids in the picture, you can own fewer wetsuits per kid, as one may grow out of a suit that the next is growing into (sharing with other families improves this further; a kids’ wetsuit lasts much longer than any one kid is its size)
I inherited one from a cousin when I was small, and loved it.
Additional pros to kids’ wetsuits:
Any part of the kid covered by the wetsuit does not require sunscreen
choosing high-visibility colors can make a kid easier to keep an eye on both in and out of the water, vs being mostly human-colored plus swimsuit
with multiple kids in the picture, you can own fewer wetsuits per kid, as one may grow out of a suit that the next is growing into (sharing with other families improves this further; a kids’ wetsuit lasts much longer than any one kid is its size)
I inherited one from a cousin when I was small, and loved it.