It was a wonderful indictment of our education system. This system had imbued him/her with the skills to plan his burglaries and address some problems in how to successfully achieve his aims. He/she even listed what tools he would need.
The young burglar (and I say young by looking at the handwriting/language/skills they had displayed) was applying skills he had learnt at school to knowledge he already possessed (where desirable items were located) to gain more knowledge (how to acquire said items).
Surely this is the purpose. Skills are tools.
Reading is a tool to gain knowledge.
Writing is a tool to impart knowledge.
Maths is a tool to further knowledge.
These are the most basic tools. You may read a page on Google to gain knowledge of your favourite celebrity. You may write an abusive tweet to impart to another the knowledge that you are an obnoxious troll. You may use maths to work out whether your benefit will stretch to two bottles of alcohol or just one. You are using skills but to what purpose?
A tool has no value. What you do with it does.
Concentrating on skills we are worshipping the tools and missing the point. (And yes the pun is intended.) Do we admire the Mona Lisa or the brush Leonardo used? Do we look at Michelangelo's David and ponder over the chisel?
Yes, skills are important but they are a MEANS TO AN END and we must not forget that.
"Guns don't kill people, rappers do," as Goldie-Looking Chain put it.
A hammer can be used to create a house. It can be used to bash somebody's head in.