Because I never benefited from them. And they are too niche (Pascal, LaTeX, XQuery), so I did not learn anything of relevance. And all that programming has hi

Because I never benefited from them. And they are too niche (Pascal, LaTeX, XQuery), so I did not learn anything of relevance. And all that programming has high opportunity costs and physical costs (back pain, worsening eyesight, vitamin D deficit).