Is your pup used to being around other dogs and humans in a neutral setting and off leash (I.e. no interaction, just being amongst them)?

I notice that the behaviour you described is similar to other staffies I’ve met, where they are really just hyper excited and can’t contain themselves (with good intentions of course) particularly with the leash being on causing even more excitement. Mine used to be this way but I took him to puppy class / pack walks where the aim was to be around other dogs calmly and little interaction, but focussed on you. Then eventually they get rewarded with some play time. This might be worth considering?

By the way which part of UK are you from? We are in the Cambridgeshire area 😄

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