And it's not just the dev time: with C++ (and C, and any notorious unsafe language..) you've got to be extra diligent about security, which uses even more time,

And it's not just the dev time: with C++ (and C, and any notorious unsafe language..) you've got to be extra diligent about security, which uses even more time, and requires expertise not just in C++ but also how to write secure software in low level languages... a skill many C/C++ devs lack, unfortunately.