1-Shedding: Some dogs shed a lot. You will find fur everywhere! Though the amount of shedding depends on breed.
2-Time commitment: A dog is not happy if he doesn’t have daily exercise and can only do his business in the backyard or at the street corner. That is why it is harder to have a dog, especially a big one, inside the city. Dogs need to run, enjoy their freedom, and use their noses in natural surroundings. So if you don’t live close to a park, forest, or other green area, you should consider not getting a dog.
3-Bath and cleanliness: Regular baths are important so as to keep your dog away from ticks,etc. That may cause allergies and sickness. Also, while it is still a pup, it will poop anywhere in the house until it gets proper potty training. So be ready to constantly clean it every now and then!
4-Cost: You need to buy dog food, go to the vet at least once a year (provided your dog is healthy), and pay a kennel when you go on vacation. Dog kennels are not cheap.
5- There are sanitary risks associated with dog ownership: dogs can carry parasites that can be transferred to humans.
Animal feces carry all kinds of bacteria that can make you sick. Dogs can also cause allergic reactions in some dog owners.
Arguments for dog ownership
Many people consider their dogs to be members of the family and thus treat them with love and respect. Oftentimes, this feeling appears to be mutual, as dog seeks out their owners to play. These animals provide unconditional love and devotion — to deny them and us this relationship seems unthinkable to some.
Also, keeping dogs and some other pets is a much more humane way for them to live as opposed to factory farms, animal testing labs or circuses use and abuse the animals.
Arguments against dog ownership
On the other side of the spectrum, some animal activists argue that we should not keep or breed dogs regardless of whether we have an overpopulation problem — there are two basic arguments that support these claims.
One argument is that dogs and other pets suffer too much at our hands. Theoretically, we may be able to provide good homes for our pets, and many of us do. However, in the real world, animals suffer abandonment, cruelty and neglect.
Another argument is that even on a theoretical level, the relationship is inherently flawed and we are unable to provide the full lives that these animals deserve. Because they are bred to be dependent on us, the basic relationship between humans and companion animals is flawed because of the difference in power. A sort of Stockholm syndrome, this relationship forces animals to love their owners in order to get affection and food, oftentimes neglecting their animal nature to do so.
Owning dogs could be fun and has some benefits as we mentioned; however, some people disagree with keeping dogs and they have their own reasons, so we refer to some religious point of views to see what their opinion about dogs is.
Religions’ perspective on Dog
In Judaism, Jewish law does not ban the action of keeping dogs and other pets. Jewish law requires Jews to feed dogs (and other animals that they own) before themselves, and make arrangements for feeding them before obtaining them. The Book of Exodus (22:31) includes the exhortation "And ye shall be holy men unto me: neither shall ye eat any flesh that is torn of beasts in the field; ye shall cast it to the dogs" which implies that dogs have an accepted role in Hebrew society, and that God does not expect them to observe the dietary restrictions imposed on their human masters.
But in case of praying, Jewish people must consider some restrictions about dogs. In Judaism, Shulchan Aruch forbids moving animals during Shabbos or holidays. It is forbidden, concretely, to wear them or even to stroke them. We must therefore be careful during Shabbos not to touch them. Cleanliness: If you have touched your dog, you are not allowed to bless or pray until you have made Nétilat Yadaïm (without blessing). Holiness: It is best if the animal is not present during Kiddush or other times of holiness.
The Talmud does not approve of keeping a dog at home, where he must be constantly shackled. It is forbidden for a widow to live alone with a dog for fear of being suspected of having "forbidden relationships".