That was obviously (I hope?) just one example. C++ has a huge set of overlapping features, some of which have been introduced as a better alternative of older f

That was obviously (I hope?) just one example. C++ has a huge set of overlapping features, some of which have been introduced as a better alternative of older features. Their interaction is extremely complex. It's great that your team manages to steer a large, old codebase without trouble, but most of the ones I've seen can't, and this complexity is part of why they can't.