An Epiphone acoustic, MIJ, which I bought second-hand 50 yrs ago, has never needed touching. My Tele - '76 - the same. A Shergold, ('78) which was played on hundreds of gigs for 25 yrs+ again, no problem. So while there is a very slight chance that 'creep' might affect a guitar, so far, it's not any of mine - of which I have many older editions - including basses.
If it did happen, I'd say it's adjustment of trussrod initially, but that would be a small diy adjustment. Of course, where (and how) it's kept, and what the weather conditions in the area may be contributory factors.