In my country I think the vocational/trade degree -which might lie between HS and uni level- on car mechanics has basic physics, mechanics and maybe some chemistry.

Ditto for the rest of technical voc degrees.

If you think you can do IT without at least a trade degree on understanding the low level components interact, (and I'm not talking about CS level, concurrency with CSP, O-notation, linear+discrete algebra... but basic stuff such as networking protocols, basic SQL database normalizations, system administration, configuration, how the OS boots, how processes work -idle, active, waiting..., if you don't get that, you will be fired faster than anyone around.