Everyday difficulties.
WHERE IT HELPS
Explaining how something works Diagnosing a problem from a description Suggesting what to check Explaining what a tradesperson told you Understanding instructions
FOR DIAGNOSIS
"My [appliance] is doing [description]. What are the likely causes?"
Useful for narrowing down before calling someone.
WHAT TO NEVER DO ON GENERATED ADVICE
Work on electrical installations Work on gas Anything structural Anything where failure causes injury
Those require a qualified person, whatever the internet says.
FOR UNDERSTANDING A QUOTE
"A tradesperson said [what]. What does that mean, and is it reasonable?"
Helpful for asking better questions, and not a substitute for a second quote.
FOR INSTRUCTIONS
"Explain these assembly instructions in plain language."
FOR SAFETY
Anything involving electricity, gas, heights, chemicals or structure: get a qualified person.
THE PRACTICAL VALUE
Knowing enough to describe the problem accurately and ask the right questions.