✔ 最佳答案
Do not over load yourself. We have a dog that is now 4 and we got her right before I found out I was pregnant with our first child.
Raising a puppy is really hard, If you are doing right. Not ignoring the dog and Training it to be a good dog for your children.
If your 9 year old can understand their roll in getting a puppy and what you will expect their responsibility to be then go for it. But if you are doing it all I would say wait a year until the 2 year old is able to understand more too.
good luck!