There wasn't an open source compiler from the beginning, and thus a lot of the compilers where expensive. You could only use the language in an awful legacy setting behind a wall of NDAs and security clearances. Not my experience, just a bunch comments on HN of actual retired Ada devs on why the language didn't take when I was researching the language.
Adacore in the last few years have been investing heavily in modernizing the tool chain, but now it seems they are also investing in Rust.
Adacore in the last few years have been investing heavily in modernizing the tool chain, but now it seems they are also investing in Rust.