Good luck with your search!
I've had two show types and both have been able to do a lot of exercise but the first was an unstoppable crazy (very loveable) boy with a very full on hunt drive and the second is a lot more laid back, I tell you this just to highlight that there can be a big variation in energy levels even within same type dogs and even dogs from the same litter.
You asked a question about when they can get out for proper walks earlier too and this is something that I find very hard with puppies! We have a very active lifestyle I have a 4 month old baby at the moment and we still do about 5-6 miles a day, it's more when I'm not so restricted and at the weekends when I have help
However, puppies can't do an awful lot for the first year until their bones and joints mature or you risk long term damage and problems later in life. The rule of thumb is about 5 mins of exercise for every month of age - so a 4 month old pup can have 20 mins of gentle exercise say twice a day - no long hikes though (or you can just pop them into a rucksack like I used to do
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I had my first child when my first cocker was a year old. I'd made sure he'd had lots of contact with children and very consistent firm but kind training from us and he took the baby very easily and was absolutely bomb proof with kids all his life
Different dogs will be react differently to children but careful handling and exposure to children very early on will be a good start and go a long way to helping your dog adjust when you have children of your own. Additionally, by the time your baby is moving around the dog has had a good chance to get used to it and it's usually not a big deal
It's MUCH better to get a pup before you have children than try and manage a pup with small children around!
Good luck, keep us posted!
Hannah x
