Had staffordshire bull terriers (SBT) around me for 40 years. I have one (Sky), sisters both have one, mum has two. Never any problems.
Brilliant with Kids, especially the bitches, due to their stoic and placcid nature and high nuture instinct. Not nicknamed the nanny dog for nothing. Ironic given the chav trophy dog thing and a good reason why so many end up in rescue.
I agree though that they are getting overbred, and also WTF is happening to their size. An SBT should be about the size of a springer spaniel (without the hair). Certainly not more than 18-20kgs. Have seen some around that are 25kgs +.
BTW my sisters previous dog Poppy is the reason for the L-2-HGA DNA test given to all pups now, as she was the first dog diagnosed at Newmarket with the condition.
Anyway heres Sky, my 6 yr old rescue (currently downstairs crashed out after nailing Whytes Level at Afan today
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P1000648 by carlos_fandango, on Flickr
Even with kids I'd still recommend a rescue dog, again particularly a neutered bitch under 2 years.
English bull terriers (EBTs) are a lot madder (and more overbred). Will eat any object lying around and regularly need their stomach opened. For inspiration check out the art work of Ray Richardson. I have a print of this: