This is all to my fallible recollection.
I remember having to do a research project in middle school. We all got shuffled into the computer lab to start researching a topic to ultimately write an essay or presentation or some such on. The problem for me was that I was kind of blindsided by it.
I all of a sudden had to not only learn how to use a scholarly database to find good information on a topic, but had to pick a topic as a preteen that was interesting and had information available to digest. I don’t remember what I ended up doing.
There were other instances of this in my pre-university education though that went better, with more constrained topics or scope.
Top opening bottles are probably a bit of a vestigial design feature now, but I imagine before modern materials, sealing, and cold storage, having the cork, cap, sealant, or other stopping mechanism on the top meant less chance for it to deterioriate or fall prey to pests.