Pets are not impulse items. Discuss it with the entire family and if possible everyone should come to meet the potential new family member. This applies to ALL pets! Parrots can live up to 75+ years. Reptiles require special lighting. Many fish grow quickly and need a large tank. Some small mammals need special diets. Puppies require patience and training. Kittens may ruin furniture.
Some things to consider are:
How stable is your life?
Do you own or rent your home?
Are you physically able to handle the type/age of the pet you are looking at?
House or apartment? Yard or no yard?
Do you have the time for the pet you are considering?
Have you researched the needs of the pet you are adopting?
Are you ready for pet proofing your house?
Is your new pet going to disrupt your existing pet?
Is anyone in the house likely to be allergic?
Is your household high energy or low energy?
Are you willing to abide by laws regarding pet keeping?
Are you financially strong enough for emergency vet bills?
Are you planning a pregnancy?
Are you in the military or a student?
Are you prepared to pay a pet deposit (if you rent)?
Did you know insurance companies may not give you homeowners insurance if you have certain breeds of dogs (the breeds in question might surprise you)?
If you think your existing pet is lonely and would like a companion have you thought your pet might just want more of YOUR time?
Are you planning a vacation or do you travel much?
If your pet ends up with behavioral issues are you willing to work with them to help them though it? ie obedience classes etc.
Adding a pet to your family, even if it is a family of one, should not be entered into lightly. Pets love us unconditionally and they deserve the same from us.
So Think Before You Adopt! The life you are "saving" depends on it.