GCSE's are year long classes that you take specifically so you can get into the Uni course you want to take. Different degrees require different GCSE's often with a grade of 2:1 or higher.
You do have the option of NOT doing GCSE's and going to a college to learn a trade instead.
A levels... I simply don't understand. I've never applied for a job that asked for GCSE or A levels. They've always just wanted to know my degree and what my skills are.
Ah, you've got a bit mixed up there... what you described as GCSEs are actually A Levels.
GCSEs: 2-year courses taken in 8-10 subjects between the ages of 14 and 16.
They are compulsory for all and are the most basic qualifications you need to get a job in the UK. Without GCSE's you are considered not to have any qualifications at all and likely won't be able to get a job or get accepted to further training/academic courses.
They will NOT get you into university - they aren't high enough standard.
They are approximately equivalent to:
- a US high school diploma.
A Levels:2-year Advanced Level (A Level) courses taken in 3-5 subjects between the ages of 16 and 18.
They are the requirements for getting into university in the UK, though there are other vocational qualifications that can be taken instead, which are considered equivalent.
They are approximately equivalent to:
- US AP classes
- US college prep classes or US Freshman/sophomore year of college
- US Associates Degree
I'm afraid I don't know the Canadian equivalents though as I'm not familiar with the education system in Canada.