Earlier quoted context omitted.
>> 3. Navigating less known technologies. For example my Python knowledge is limited and I don't really use it often, so I don't want to spend time to better learn it. Respectfully but that's a bit like saying you don't need to learn how to ride a bicycle because you can use a pair of safety wheels. It's an excuse to not learn something, to keep yourself less knowledgeable and skillful than you could really be. Why s…
I'm long time programmer and I learned quite a lot of languages along the way. 20 years ago I programmed Perl and I spent some time learning its quirks. While some of that knowledge definitely helped me all these years, especially regular expressions, I wouldn't write a single Perl line without Googling today. So learning syntax nuances of yet another programming language which I'll forget soon is wasted time. There'…
Rereading your comment I think I got the wrong impression from it. You said:
>> I don't really use it often, so I don't want to spend time to better learn it
And I focused more on "I don't want to spend time to better learn it" than on "I don't really use it often". I also don't use Python often and I have to look up its syntax, same with e.g. R. I guess in that case it makes sense to not spend too much time learning the ins and outs of a language. On the other hand, Python is a staple, like Java was back in the day, and Perl and so on. It's useful, like speaking English. I don't think I would ever feel comfortable saying "I don't want to learn" it; or anything else.