It's all about management. I think it depends a lot on you all being committed to a plan to make it work. Both spouses being on board. My oldest daughter was two years old when our first Golden puppy came home. With crate training and the occasional use of baby gates to manage them, it was no problem at all. Now I will say that i was a stay at home mom. I was very committed to making it work. I took my puppy to obedience classes while she was at a church mother's morning out preschool program.
The other part of the dynamic was that my daughter was an 'easy' child, she listened and played nicely with the puppy, I supervised them, the 3 of us did everything together, but I didn't have to worry about her hurting the dog, she understood early about not hurting other living creatures. If your child is a 'handful' and doesn't have good self control or impulse control for her age, you might consider holding off longer.
We had rules about keeping toys in the toy room, I also did not let her walk around with food, you sit in a chair at the table to eat. If you have some structure it makes it easier to manage having two toddlers at the same time

Since Coop was older you all may have forgotten how energetic a Golden can be for the first couple of years. Make sure that you and your spouse discuss before bringing a puppy home who is going to be the parent taking the dog to class and who will be responsible for daily obedience training practice and who will be responsible for making sure the puppy is getting the exercise he needs to be a good puppy, because this also needs to be every day and a walk around the block after work won't cut it, it needs to be retrieving, swimming, aerobic exercise.
I have some of my favorite photos of my daughter and our first Golden boy playing in the sandbox together or playing in her wading pool together, we were very happy. I agree with previous posts above, get on a wait list with a reputable breeder, start researching now, lots of good information here or at GRCA.org on health clearances etc. and breeder code of ethics, by the time you have it in motion you will have had time to get your management plan in place (baby gates and an expen are your friend). Hope you'll stick around and share your story here. Best of luck
