I’m rather flexible and I make myself available as late or early as possible on any given day to include a day on the weekend if I have nothing in my personal schedule, and it’s priority work.
Plenty do 9-5, M-F but I (personally) find that to be unreasonable if you’re working with people from all walks of life. You’ve got students, young professionals, retirees, public safety personnel, military personnel, senior executives, etc. - not everyone operates or is available 9-5, M-F.
A steady set schedule is unusual in this line of work - some days are long, some aren’t as long. You can say, “Well I’ll only make myself available on such and such days,” but you’re only shooting yourself in the foot. People have found ways to make it work, however. Doesn’t work for my cases.
Mileage may vary depending on your geography, home life, and the sort of work you receive.
You’ll eventually juggle 1-3 dozen cases at any given time made up of different sorts of work (anything from single items to entire cases) that are required to be completed in 2-4 weeks time, which also accounts for planning the work, doing the work, and submitting the work (sometimes resubmitting work). You can be great at time management, but there are too many variables that have the potential to negatively affect your workday and even your entire week.