I've met plenty of programmers who had no sincere interest, but just saw it as a job they did 9-5 and then never thought about computers outside of those times. Programming was simply seen as a skill that could lead to comfortable, reasonably well paid job, and that was all the incentive they needed to learn the minimal amount needed to get said job. Basically as long you have an incentive to want to learn and a bit of tenacity you almost certainly can.