My first reason is that if you can't afford your pet's needs, you should be able to get rid of them. If you don't, they might starve. They might also be depressed. They might even die early! I think it is better to give them away.
My second reason is that your pet might not be well-behaved. If you don't give them away, they might chew on expensive items that you can't afford to replace. They might also be harmful to yourself or others. When you have an important meeting or something, no one will want to take care of the pet. It should stay legal to give your pet to someone who is better fitted to train them.
My third and final reason is if your dog has puppies then you would want to give them away or possibly sell them.You wouldn't want your house overrun with puppies, no matter how cute they are. Also, if you aren't allowed to give away your puppies, no one else would have any. No one can afford that many puppies or pets, anyway. No one will have pets, so you should be able to let them go.
It should stay legal to get rid of or sell pets. If you don't have what they need then you can't take care of them. They also might not be well-behaved. Finally, your dog might have puppies! So if you ever have a bad or expensive pet, be glad that you can still give them away.
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