It was not University but high school (15-18yo). In Slovakia we have gymnasiums (for students who want to go to university), trade schools (plumbing, machining,

It was not University but high school (15-18yo). In Slovakia we have gymnasiums (for students who want to go to university), trade schools (plumbing, machining, cooking, etc) and then also high schools with specializations (e.g. electronics, accounting, transportation), we were drilling Kirchoff since day 1.