If I don't outlive crown and posts will implants still be age-appropriate?

Over 80 years old Implants vs Crown+posts. Failed bridge (#29-31). Options: 1st- Implants #29 & 30 + bridge. 2nd- #29 RCTxl, post+crown, #30 implant, and #31 post+crown (prev RCTx). Lost #30 age 10. Failed bridge was 10 yrs old. Previous bridge 30 yrs. No other missing teeth. 83 yr F good health, 1 missing tooth, no implants. Option 2 less painful and shorter treatment. Just had #19 SCL & Dr Px low-fair. If I don't outlive crown+posts will implants still be age-appropriate? I hate liquid dinner.