I'm no mechanic and I have no desire to be one but I've changed my own brake pads, surely anyone can adjust their car's brakes and many other tasks with a few simple tools and a book.
I don't understand why mechanics say some cars are better than others.
Playing around with motorbikes is actually one of my hobbies, and I have some very nice and quite expensive Snapon tools which work wonders in the garage.
However I'm certainly not going to suggest that changing your breakpads was done incorrectly because my tools cost more than what I'm assuming yours did, or that I could complete the same job a bit quicker and therefore better.
Sure, if you're going to change break pads all day long for the next year I can suggest some very nice tools which might help you.
But instead I'd like to say well done on changing the break pads, I'd wish more people would use the tools that they have at there disposal, show some initiative, and do the same.
In addition to being obnoxious I don't even think your analogy is correct. Programming languages are the tools, and it makes sense a non mechanic wouldn't understand why some tools are better than others.
I don't understand why mechanics say some cars are better than others.