I dont know if any readers have kept any of their old school or student essays. I certainly have some of my student ones, which I come across from time to time. I can't actually remember where they are, but they are somewhere deep in some cupboard that I penetrate occasionally when I am having a major search for some lost item.
The odd thing is the varied reactions I have to them. Sometimes, I look one over and am ever so impressed by what I once knew (more by the knowledge than the argument, it must be said). Sometimes, I blush with embarrassment at the naivety and errors. I expect it's more to do with my mood than the essays themselves. But one thing's for sure, at a distance of 40 years they appear either excellent or hopeless, never in between.