There are alot of 'depends' in this question! We certainly would not sell a puppy to someone who is out at work all day and I definately would not say 10 hours even to the most house trained of dogs. If we are out all day here and OH is not at home we have a network of friends who will come and see to the rest of the dogs for us. If you take on an older dog who is housetrained and settled etc I would still say ideally for someone to let them out of a lunch time, but lets face it we don't live in a ideal world.
Alot of kennels now run a creche which could help - or another option is to have a dog flap for the dog to be able to have indoor/outdoor access.

Just don't forget your neighbours YOU don't know if your dog will bark or as we had one that howled whilst we were out of the house. Be very careful of 'dog walkers' if you go down that route try and find one that can be recommended to you - we have 'dog walkers' in this area that I wouldn't trust with a teddy bear.

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