"Language agnosticism" is an ideal I have never been able to attain. Sure, I can hack together a solution on the first week of learning a language. But, am I able to write elegant, idiomatic, efficient code during the first few months? No way.
A language is not just the basic control flow operations, but includes package management, performance gotchas, correctness gotchas, standard library, library ecosystem, data representation, etc. Then there are details and edge cases that you just don't hit without months or years of hard work with a language.
My experience tells me to take choose a reasonably robust language, then stick to that language until you have an overwhelmingly compelling reason to switch.
A language is not just the basic control flow operations, but includes package management, performance gotchas, correctness gotchas, standard library, library ecosystem, data representation, etc. Then there are details and edge cases that you just don't hit without months or years of hard work with a language.
My experience tells me to take choose a reasonably robust language, then stick to that language until you have an overwhelmingly compelling reason to switch.