I hope to be as ancient, not gonna lie. The way cancer runs in my family, though: unlikely. Most men are gone by 75/80 tops.
The average age of my grandparents is 81.7, or something very close. I think my 90-year-old grandmother will live to 100, which will bring that average up to over 84, but time will tell.
75-80 is pretty high, and it also depends on their lifestyles. Personally, I feel my dad's dad took 15+ years off his life from his 64 years of drinking and smoking. Smoking alone takes a decade off a person's life for lifetime smokers.