If someone saw some kiddie punching buttons on their car's steering wheel, they were changing channnels, increasing the volume/changing the bass/treble mix, dialing a friend, texting another friend or all of the above.
I've had the opportunity to play with paddle shifters. They do give you the ability to let the tranny shift itself if you're feeling lazy. They also give you the ability to shift the tranny yourself for special conditions (including playing Speed Racer).
The Audi/Porsche/VW DSG gearbox is an electronically shifted manual transmission. They were originally developed for hillclimbing competition because their shift time is measured in hundreths of a second due to the multiple clutches.
Despite that, at least VW does't have paddle shifters(?????), you have to bat the gear selector around, possibly because the steering wheel is otherwise covered with buttons that control many of the things noted in paragraph one. Frankly, I buy vehicles to drive. If I want to play on computers, talk to people or tune stereos, I'd stay home and do it.