and learning to confidently fix a flat, and at least have a basic understanding of bike mechanic stuff will help also.
Generally though, if a bike is in great shape, its rare to have problems.
If you have no interest in doing bike stuff on your own, then having a good bike mechanic check the bike, maybe change stuff like cables, brake pads, check the wheels for spoke tensions, the basics, will mean your bike will work fine.
being comfortable with taking off a wheel and competently repairing a flat is a must though, and like I always say, it aint rocket science, and you'll feel better that you know how to do it.