Edge of childhood.
Children always remain children even when the school is already over and they were entrusted with serious things for example a theodolite or a nevelier for practical training at the university.
Yes children already have a passport, which they can leave as a deposit in case the equipment is lost but this does not deprive them of their childhood.
Even at critical moments this manifests itself.
For example you can see. like a snail crawling on the surface of an optical device I think it was not by chance that it ended up there apparently the children thoug
Author @shturm.