Term limits for the House and Senate would take care of some of the gerontocracy problem. If a person cannot serve more than 18 years in the Senate and 10 years in the House, unless someone got elected at a late age, they should be out of Congress by their 70s. Someone who got elected at age 50 and managed to max out all terms in the House and Senate would be done by age 78 unless they skipped or lost one more more election cycles and got elected again later.
Agree!
Though my preference is two consecutive terms in the Senate then sit out one full term before once can return. The House 5 or 6 terms then have to sit out 2 House terms before one can return.