I would say even more than that.

C and C++ can make someone loose days to track down issues, in this day and age, where teams are distributed with lots of offshoring and various skill levels across development sites.

My last C++ project was in 2006, since then I have only used C++ outside work. At work our focus has been in JVM and .NET languages.

I don't miss playing the C++ fireman expert role that has to fix a stability problem created by someone in the other side of the planet.

Yea actually even last week I have spent and entire day trying to bend a c++ library to my will due to errant assumptions and such. All part of the long and painful learning process!

Lets abandon quantum mechanics because most people dont understand it.