I see I have enraged the C programmers.
My apologies for being terrible at C memory management, though in my defense I am sufficiently self aware of this to realise that means it's safer for me to stick to perl as a weapon of choice.
But that talks about learning the language. What about once you're proficient?
I vaguely remember reading about a study that concluded more terse symbol-based syntax is better because the programmer can use visual organisation of the code to greater extent because the syntax occupies less of the screen. But I could also be making it up because I can't find it now.
There's also the interesting (but slightly irrelevant) result that abbreviated identifier names may be just as effective as ones spelled out![2]
[1]: https://dl.acm.org/doi/abs/10.1145/2534973
[2]: https://link.springer.com/article/10.1007/s11334-007-0031-2
The thinking is that over their lifetime, such systems will be read more than written, by rotating teams of programmers who need to get up to speed with a complex codebase, repeatedly. In maintenance mode, modifications will be less frequent than reads.
Ada was not my first language, and I was a little dubious about the keywords at first, but I quickly changed my mind. Now I wish every language did it (obviously, not literally every). It's really nice for a couple reasons.
One is just googling. You pretty much have a built-in shared lexicon, so there's no trying to remember the right name for the problematic symbol, or figuring out the best way to describe it.
There's also no trying to remember what symbol does the thing you want, which is really nice even when just coming back to a language feature you haven't used recently enough to be fresh on.
I have no idea how much these things would matter in a more structured environment. I pick up words way faster than symbols and my memory isn't so great, so I think it would have helped me even there. But I don't know how universal that is.
Though given the number of times I had to help the actual CS majors with basic syntax stuff, even after the 101 course... I can't help but suspect it would be useful.