As an European tech-sphere data point: it seems somewhat normal to travel the world for half a year before your first job. Gap time later on is not so common. Still, I can easily name five colleagues who took one to six months off, some as unpaid vacation, some between jobs.

Personally, six weeks sounds more like an extra-long vacation. I always took four to six months off before looking for a new job, or when on-job an unpaid month or two every other year. But that's definitively nowhere near the norm, many people don't understand it. I usually end up coding 20h per week on geek projects or random open source stuff. After six months I predictably get bored with it.

I rarely end up doing the project I planned to do. So if you want any advice from me: Don't force yourself to do what you thought you wanted to do, before you had time. Look around and don't feel guilty for following that new interest you just discovered.