Dd is almost 11 and has wanted a dog for years.
But, do YOU want a dog?
Yes, DD will be over the moon for the first few weeks (unless it's a landshark, biting, nipping, jumping, barking puppy then she may think otherwise). The novelty wears off and they just become part of the furniture.
She won't want to be responsible for feeding, worming, defleaing, sorting out vaccinations, boosters and spaying/neutering, or walking especially when it's dark and peeing with rain.
Logically, will you want to do this every single day, the walking I mean? You might be SAHM but you're still very busy, I bet. It does take a chunk out of your day, and it takes your time/attention ALL day, every day if you have a puppy because you need to housetrain, train otherwise, amuse, clean up after... very labour intensive for the first year
And you have to think about times when you need to take your DD to/from school, after school clubs, swimming, days out - nothing can't be arranged but you have to think and plan these things rather than just doing them.
Dogs are expensive, all the above-mentioned treatments, pet insurance, kennels if you go on hols, or dog sitter fees, etc etc.
Really not trying to put you off but I truly think people don't always think through stuff - I apologise if you have.