I don't think that's entirely reasonable in a discussion about schooling as curricula in different countries differ considerably. A 17 year old Chemistry studen

I don't think that's entirely reasonable in a discussion about schooling as curricula in different countries differ considerably. A 17 year old Chemistry student in Victoria, Australia might be learning about how to read NMR spectrograms and some common industrial chemical processes [0], a 17 year old Chemistry student in Texas, USA might be learning about the chemical processes involved in genetics [1]. 0: http://www.vcaa.vic.edu.au/Documents/vce/chemistry/ChemistrySD-2016.pdf http://www.vcaa.vic.edu.au/Documents/vce/chemistry/Chemistry... 1: https://www.kleinisd.net/users/0138/Chemistry_Scope_and_Sequence_2016_2017.pdf https://www.kleinisd.net/users/0138/Chemistry_Scope_and_Sequ... Different places teach different things at different times, so I don't think equating ages works very well.