Fair enough. I was kind of trolling and deserve any downvotes I get. But I was partly serious: I would like, in principle, to learn to touch type; I take my text editor very seriously and have learned the language that it is customized in fairly deeply. But when I start to learn to touch type, I immediately start to get pains in my fingers that I've never felt before, and my instinct is strongly to let sleeping dogs lie here: it is my profession and if I don't currently suffer any hand problems I think I should carry on as-is.
What if it has an effect on your career and you don't realise it? Sounds way more likely to me.