I have NEVER had to replace a battery on a nexus phone. nobody needs a replaceable battery unless you cant afford the phone to begin with.
Lucky you. Lithium batteries do fail. Ask Boeing if you need proof.
Hooray, instead of working they now can live on the street and starve to death.
Not necessarily. According to TFA:
When new violations are found, Apple requires its suppliers to return the workers back to a school chosen by the family and finance their education. "In addition, the children must continue to receive income matching what they received when they were employed. We also follow up regularly to ensure that the children remain in school and that the suppliers continue to uphold their financial commitment," wrote Apple in its latest report.
Of course I have no idea if those lofty goals actually happen or not.
Computer Science is merely the post-Turing decline in formal systems theory.