Well said. RS232 is an important, effective, and reliable system for interconnects. Proven, time-tested, yada yada yada. Yes, sometimes theres confusion over baud rate,, word and bits, and parity, but those are minor compared to the pain in the ass that is USB with drivers, conflicts, length, etc. The biggest problem with RS232 is the confusion over DCE and DTE so one always has to have null modem adapters handy.
At least you youngsters don't have to deal with 25-pin RS232 or secondary channel communications. Hell, it's rare to see even hardware flow control anymore of either type, or bizarre comm settings like 7E2. Pretty much everyone defaults to 8N1, 9600, and no flow control with the option to up the speed in the device config.