If it really doesn't affect your life, try not to do such an operation. If the operation is successful, you can correct your fingers. If you don't succeed, you may regret it all your life. Although the doctor gave you advice, some things still need to be decided by yourself, and sometimes the doctor's advice is not completely correct. Your little finger is naturally bent and can be corrected by some exercise. I don't know whether this suggestion is useful to you.