[AlotOfReading]

A big issue with introducing C++ into a codebase is that it's incredibly hard to stick to a particular subset or standard. There's always a well-justified argument for the next standard or "just this one additional feature". Eventually you end up with the whole kitchen sink, regardless of where you started.

I've had far more success hard-firewalling C++ into its own box where programmers can use whatever they can get running than trying to limit people to subsets.