A lot of vehicles put the push buttons for cruise control in the same spot so I think they just followed that convention without thinking. Also a lot of vehicle

A lot of vehicles put the push buttons for cruise control in the same spot so I think they just followed that convention without thinking. Also a lot of vehicles have a rocker or switch to activate cruise control or turn it off entirely and I bet they replaced that with a pcap button as well. The original design functions as an interlock where you have to turn cruise on on standby and then set speed separately, but pcap buttons make it so much easier to accidentally activate that it no longer serves its intended purpose.