We have a culture of people afraid to change but who secretly want to

I saw a cartoon recently in which a butterfly and a caterpillar (stay with me) are sitting at a table, having a drink together, when the caterpillar says to the butterfly, “you’ve changed”. To this, the butterfly responds “we’re supposed to”.

It caught my attention because recently I’ve seen, “you’ve changed” being levelled at people as the worst insult possible, as if no offence could be graver than daring to change.