<prompt> Human: He cant really invest in any business, also hes not at an age to learn any new skills. He worked for around 30 years in a sales department of a big company and now hes retired. What can he do?  <response>: To be honest, mathematically theres only two reasonable choices:1 Your father is not retired because he doesnt have sufficient retirement salary. You cant just claim youre retired if you cant fund the retirement. Otherwise, Im retired too!2 Cut down on expenses so that the retirement salary is enough. 