Reason to not marry a woman much younger than yourself........brother-in-law approaching 65 (eligibility for medicare).....wife 4 years younger....current health insurance for both from where he still works (i.e., subsidized by employer).....if he quits job & takes medicare .....she would have no health insurance.....he would have to go try to buy her a policy (expensive) on his own till she too reached medicare age. So, he feels he has to work till she hits 65......