In my limited experience Turkeys need to be shown how to eat and drink and watched for 3-4 days fairly closely, or they never pick it up. Feed store turkeys that get shipped seem to never learn food good. I try and have 2 week old quail in with turkey hatches if they are not with momma. The turkeys LOVE watching the crazy hyper psycho quail, and will follow them to food and water. I'll set eggs all 3 at the same time, and have them in the same brooder ( turkey quail and chickens) while the turkeys are babies. My mother turkey did not take her babies out of the big coop until they were almost 2 months old. Most people wait till 2-3 months to put them on soil. They are fragile. You would think you would be worrying about the small quail and not the honking turkeys, but not so much!
When I sell turkeys, I give out copper sulfide and a blackhead warning ever since UC Davis put out the alert last year. I don't trust people to order it to have on hand, and you don't have time to order it if you HAVE blackhead in your soil. But then again, I give people the cocci lecture too, I'm paranoid.