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/Chemistry...

1: 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.