.32ACP is still around and still a great choice.
Gun stuff is cyclic, like anything else.
Best example is wearing pearls. Ladies never stopped wearing pearls, but when Barbara Bush was seen wearing them, the wearing of pearls increased.
TV, Movies, Video Games, Gun Magazines, and Internet all influence buyers on what they buy. Called
Marketing.
One can have a case of Coca-Cola at home and the Sensory Input of Pespi (who paid to have their product in the movie) will have folks go buy a six pack of Pepsi on the way home from the movies.
.32ACP increased in popularity again with the Beretta Tomcat with the tip-up barrel.
Then it waned, only to be revived by the Keltec P-32.
NAA 32 is again reviving interest.
1. Have a gun.
2. Shot placement.
The Reality is, not everyone toted a hogleg in a caliber starting with a "4".
Too expensive , heavy, hard to conceal...
Lots of 32 and 36 calibers carried instead if one checks history.
Physically Limited folks find the tip up feature of a Beretta .380 and .32 great!
Fact is, the 32 conceals easier.
Slide does not lock back on the P3AT, which again does not bother most folks, even at a range where they use Chamber Indicators to show "clear" for range rules...
..but...
Watch a UC LEO, demonstrate being able to run a P-32, and Tomcat one handed.
Replicate being shot, and racking the slide back on a P-32, inserting mag, letting fly the slide and back in the fight.
Replicate getting a Tomcat loaded, dry gun, remove one ctg, insert mag, insert ctg into tip up barrel and back in the fight
Replicate dry gun, getting one ctg into tip up barrel and getting one shot off in a hurry.
There are folks with special needs and have special situations.
Physically Limited folks, some with birth defects, amputees, injury, recovering from surgery, arthritis...
Hence the person is wise to NOT rule out options, including certain platforms and calibers, including a 32.
All the folks Marketing, all the folks posting on Internet, will NOT be at YOUR gunfight.