Handling guineas to make them tame is
not easy!. It's been done, for sure, but I can't imagine handling keets enough to make them tame. Those little "rascals" (I have a special "B" name for them outside this forum) can FLY at two or three weeks and they will. They act as though you're a hawk swooping down to make them lunch, jumping all over everywhere to get away from you. It's like popping corn without the lid on the pan. lol. Your daughter may or may not like that...
When they're older in the pen and coop during the six to eight week confinement time, you can build trust by hanging out with them and not making any sudden moves. They'll get used to you and maybe even take treats from your hands. That's when it starts to get really fun in my opinion.
Chickens are a lot easier to tame (they're smarter, too), but I never had success with that either until they figured out I'm the one with the corn scratch bucket. They'll hop in my lap for THAT. Guineas will be great for insect control, and you and your kids will love them for their quirky personalities, but they aren't chickens. Don't expect too much in the way of friendliness or companionship from them.
I can't stress doing research on these birds
before you get them strongly enough. It seems you're doing that, so when you get them, you'll know what to expect and be prepared. They aren't difficult, but you need to know what the pros and cons are so you aren't sitting there with a flock of birds that you don't want and either have to eat or re-home, or you open the door to your pen and they fly away, never to be seen again.
Has anyone mentioned how very very loud these birds are?

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