The other posters are right. Don’t get a dog.
I dog sit one day a week for my daughter, a lovely 1 year old rescue pup, purely because we usually go away a lot so a dog of our own would tie us down too much.
Anyway, came back from a very brief walk yesterday, with 2 poo bags, checked her for ticks, she wasn’t very happy as she had been stung by a wasp the previous evening, and then she went into the garden and found some hedgehog poo and managed to wipe it all over herself.
So, really, picking up their poo is not the worst thing you will ever have to do, there is a long list. TBH when we have had dogs over the years we never, ever thought about the poo thing, so the fact that you have thought about it already doesn’t bode well, what happens when it get the trots and poo ends up on your carpet or on your furniture and bedding? Not to mention trying to get hedgehog poo of it before it brings that indoors too!
Please think long and hard about it and don’t rescue a dog only to take it back again as that would be too cruel