I'd struggle to code a five-line program that'd compile in languages I've written tens of thousands of lines of code in, in Notepad, that'd actually compile & run on the first try. I might fail that in a language I was writing last week. I mean, I might manage it, but it'd be sheer luck. Decent chance I forget, in the moment and under pressure and without examples to crib off of, IDE support, or the ability to check the manual, the correct way to do comparisons for all types, even, or basic stuff like how to print to the console or what this language's sugar for a "for-each" is, or whether it has such sugar. Reading input? The right calls for file IO? Anything more complicated than that? Oh god, there's no way.

Luckily I never fucking ever have to do that in my actual job. If I did, I might well get good at it. Since I don't, I... don't. I also haven't gotten much better at driving semi trucks or framing a wall, in my over-a-decade career writing software. Go figure.