It's not deemed a luxury by any other country.
To see education as luxury, in whatever shape or form, is very sad indeed.
If so, perhaps we should have higher VAT on restaurants than food bought in a shop (going to a restaurant is surely 'luxury')?
Or, perhaps certain cars should carry higher VAT charges - Land Rovers in the city centres anyone - surely a luxury?!
What about private healthcare, music, swimming lessons etc etc.
The bottom line is that the UK was made successful due to people coming here from all walks of life, and from all corners of the world as there was freedom and freedom of choice.
If you don't like that, perhaps you'd feel more comfortable in China or Russia?