Need someone's opinion on this since OP mentioned c++. If I take c++ as a specialty language would a companies be more willing to hire people in their 50-60's I

Need someone's opinion on this since OP mentioned c++. If I take c++ as a specialty language would a companies be more willing to hire people in their 50-60's I know it's a difficult question to answer but I feel like c++ is a ageism proof skill much like Fortran or COBOL. Let's all find a solution to this problem as this topic always come up every month on HN. So which programming languages are "ageism proof"?