Aggressive puppy and 3yo

[puppyhelp]

We have a 10 week old puppy who is being very aggressive towards our 3yo. Goes for him anytime son is standing near him; jumping, snarling and barking. Doesn't show aggression towards dh and I.
We are doing 1 on 1 remote training with a recommended trainer and my dh thinks he can be trained out of it.
I'm really not hopeful at all and want to give him back to the breeder while he's still young enough to find a new home easily (without children).
I don't think it's fair for our son to be scared in his own house due to a pet we brought in.
He's been around lots of other dogs and isn't scared of dogs in general.
What do you all think? Have you overcome a situation like this and how?

[CallMeRachel]

Your puppy will likely see your 3yo as being a playmate. If he had his litter mates with him now they'd be playing really tough, and part of that is the growling and snarling.

Puppies get over tired just like toddlers too and absolutely need downtime to sleep a lot during the day.

He sounds overstimulated.

Unfortunately it doesn't sound like you understand dog behaviour as you are misinterpreting this as being aggression rather than overstimulation and wanting to play.

Please speak to the breeder and join as many puppy groups as you can.

Make sure your trainer has qualifications and is positive reward based ie IMDT certified. Any Tom dick or Harry can start up as a 'trainer' and saying 'leave it' isn't the best in your situation. One, your child is not a toy and two the behaviour should be prevented rather than it coming to this in the first place.