The independent school (aka private school) sector has seen fees double or triple over the last 10-20 years. This is largely driven by rich foreign students, primarily Chinese, sending their kids to these schools.
I don't particularly regret these bastions of class division destroying their reputation for money, but there are a lot of knock on effects. Independent schools used to be one of the few paths for middle class mobility - scrounge enough to send your kids there, and they are basically guaranteed entry into the elite of British society. But these days the tuition is prohibitively expensive and prices out almost everyone. This just exacerbates the class divide even more in the UK.
The main issue though is that independent schools in the UK have non-profit status - so pay NO tax on the fees they charge. With the rising fees locking out most people from access to them, there is very little societal benefit to these schools. But as a taxpayer, I have to subsidize education for the very rich or rich foreign nationals. It's ridiculous.