Every job has a part people don't like that's necessary. The company you work for pays you money to fill the fields out, you fill them out, you get paid.
Or you could show initiative and improve inefficient processes instead of blindly following "how things are done".
That's why I do it. That doesn't explain why they even need to be there.
For example every project code drop down has this experience: my manager tells me what project code to put everything against, then I always pick the same option. Sometimes I've not been granted access to that option and waste a bunch of time getting that turned on.
At no point was any part of this necessary, because I neither defined the ticket, or could select the project code for myself, but we're all engaged in an elaborate game pretending I had agency over it.