This is an important yet under-appreciated point. It's now extremely difficult to sync an Ethereum node from scratch. If the processes ever completes on commodity hardware, it takes weeks. And that difficulty will only climb as more and more stuff gets dropped onto the Turing-Complete "world computer."
This situation drives users in ever greater numbers to services that tell them which transactions are valid or not. Verification with a full node, the bedrock of censorship resistance, dies a death of 1,000 cuts as a result.
https://medium.com/@VitalikButerin/because-of-ethereums-expo...
The tests the parents in such wealthy schools get upset about are the teacher assigned ones.
But again, I only have deep knowledge of two schools, so am happy to be corrected if I'm on off this.