I can't speak to the general case, but to my experience with big corporations/enterprises.
Automation is rarely implemented, and when it is it's half-assed. And then a year or two later they try again, but the old system remains, and now your workers have to connect two systems manually. And then a year or two later...
Not my domain, I'm busy enough, but in one area of my org there are a ton of people whose job is, at its core, to manually synchronize about six databases. They also interface with customers, so that part can't or shouldn't go away. But they spend 80% of their time (estimate based on friends who worked there) doing that manual sync. Every time someone had the same thoughts as me but the power to do something tried to automate it, they ended up with an extra database that was only partially connected to the rest.
Too many stakeholders, not enough leadership.