Nah it won't because I'd still feel crap if I caused someone's death.
Young drivers are penalised and pay ridiculous insurance premiums yet insurers give massive discounts to older drivers who simply aren't safe anymore
You would always feel 'crap', if you caused another to lose his or her life, (I hope), but being old is a very low factor in accident risk assessment. Oil on the carriageway, a bad decision on the part of a driver, peeps on mobiles, peeps pi**ed, much greater risk.
This should answer the second part of your reply.
Research by the RAC Foundation suggests drivers aged 75 and over make up 6% of all licence holders but account for just 4.3% of all deaths and serious injuries. By contrast, drivers aged 16-20 make up just 2.5% of all drivers but 13% of those killed and seriously injured.