
Let you into a secret, my adults (over 2 or 3) are the same, unless a walk is on offer, but I have a job to keep pups in whatever the weather.
Adults in my breed seem to believe in conserving their energy most of the day, and only the younger element spend much time outside playing, the real adults believe the garden is just a comfort station, though they do like to soak up winter sun in the mornings. They will stay out as long as the back door stays open.
Indoors I don't have room for a puppy pen larger than 6 x 3 feet, so they really are gagging for mroe play room outdoors by 4 1/2 weeks, also they hate being dirty in their play area.
I can manage to keep them fairly happy to be contained for the night, and for short periods in the day.
I'm lucky if I can keep them happy to play in the dog run outside past 5 1/2 - 6 weeks, usually by then they want the full range of the dogs area.