David, if you got the red, you spelled it wrong. The red blocks are the replacement for "censored" in the language filter.
I have a fondness for the .410, mostly nostalgia, but not entirely. People say its a great gun for kids beginning, and other say its an expert's gun and both are right.
The relative light recoil, is beneficial for beginners, and allows them to learn the principles of shotgunning. It'd dandy for small game animals and pest varmints at closer ranges (its a barnyard rat wrecker supreme), but for wingshooting the small shot charge and generally full choke guns make it an experts gun.
My personal beginning was with a .410 (a bolt action Grandpa had) and after shooting a whole box of (expensive) shells with only one bird hit, I decided that it just wasn't enough. Got permission to use Pappa's double 12, and despite splitting my lip open with my thumb the first time I shot at a bird, I never looked back.
So, use a .410 to teach youngsters the basics and then move them to a heavier gun for wingshooting as soon as they are physically capable. For a pest gun, its tough to beat.
The old time "classic" farm when I was a kid invariably had at least two guns, a shotgun, usually a 12 or a 16 and a .22 rifle. If there was another gun in the house, it was usually a .410 (for pests not worthy of the 12). The was the usual, for farmers, who weren't sport hunters. And sometimes even if they were hunters. 12ga does quite well for ducks and deer within its range limitations.
several folks have mentioned 28 ga and yes, technically its superior to the .410 without much more recoil, BUT where are they???
You could always find .410s somewhere back in the pre Internet, pre Walmart days, when dept stores, hardware stores and general stores sold guns and ammo, there were always a few rounds everybody had, .22LR, .30-30, 12 ga, and .410. Might not have MUCH .410 but somebody always had a box somewhere. Might not have 16ga and wouldn't have 28ga, seems other than .410 the smaller gauges went away and the 20ga took over the "lighter" spot.
Nowdays, my most frequent use of a .410 is in my T/C Contender. With the straightener 'Choke" tube on a 10" barrel, patterns aren't horrid at short range and its a handy pest gun. And, take a look at the ballistics of the .410 slug. Accuracy from a smooth bore isn't great but a 109gr (1/4"oz) slug at 1600fps (from the full length shotgun barrel) is not worthless.