Well said east coast
I would be after a pup from good sound child bombproof parents, reared in the house around kids with the dam, then when the pup is ready to take home you bring the pup up in your house with the kids with you around at all times, to correct the kids and the pup on correct behaviour from day one.
As most have said all pups are different and all breeds are different good and bad in every breed. I didn't have a kid when got lurchers at pup they will get man handled and chased by my 2.5 year old boy and will go over to him for it then walk away when had enough.
The older Beddy bitch wasn't brought up with my boy and will keep away from him if she can most time but will let him climb on her etc
The 2 beddy pups I bred have here since day one and with boy similar age to them, they will both pester my boy more than he does to them and will be very submissive to my boy and he can do anything to them.
All dogs are different but upbringing can change a dog for the rest of its life.
A cage in the house for the pup to sleep in from day you bring it home would be a good idea and anytime you needed lock pup in away from kids you could