Hi Samuelward!
Generally agree, except for never leaving the dog alone. Training it to be alone and happy for a short period of time is valuable as it prevents separation anxiety. Walking a dog before doing this and giving them a chew toy guarantees good behaviour. Most likely they will happily fall asleep. A responsible owner will create a safe place for the pup to wait where they can’t get up to any mischief.
As for toilet training, it depends on the breed. If it is a larger more intelligent breed they can take to toilet training very quickly because their bladders have more room and they have the facility to learn. Also, it is the owners responsibility to learn the dog’s elimination schedule. If the owner is attentive there won’t be a lot of accidents.
I have the good fortune of knowing a dog walker. Most people that are working away from home hire one. I have heard of other strategies like taking the dog for a walk before work and if you live quite close going home on your lunch break. Some people put cameras in their home to check on their dog. It should be noted that not everyone works full time.