And to complete this, if we know that Sherlock never had a friend besides his brother, John is his first and only really true friend!
Most people think the era of this view is over but it’s not and denying it is just another part of keeping this view in place.
1. In 1589, English pamphleteer named John Stubbs was sentenced by Queen Elizabeth to have his hand severed for seditious writing, and before the ax fell, he cried out, "My calamity is at hand!" - thus becoming the only known victim of Elizabeth to incorporate a pun at his dismemberment. He then fainted.