Hello, am a fresh A-level graduate here who has scored very well and am considering majoring in CS but also chemistry as I enjoy the subject and also have quite a passion in teaching. I want to ask whether is it still possible to pursue PGDE to teach chemistry at a secondary/JC level (As a mid-career change) if I decide to major in CS now?

Also, I want to ask if yall would chase the money in a well-paying field like CS now or pursue your passion (i.e teaching i assume? ) if you were given a chance to start over again? I know its quite a loaded question so you can not answer this if you don't want to. As a bit of background, I come from a poorer family but was born smart and ended up in an elite JC. I got surrounded by ppl with lots of $$ so I have questions about how much would yall value $$ hehe.