We usually don’t worry about personality changes because they’re typically quite limited. Completely replacing brain biochemistry would be a change on a completely different scale.
And people occasionally do worry about these changes even now, especially if they’re permanent, and if/when they occur in others. Some divorces are made because the partner of a person “does not see the same man/woman she/he fell in love with”.
We usually don’t worry about personality changes because they’re typically quite limited. Completely replacing brain biochemistry would be a change on a completely different scale.
And people occasionally do worry about these changes even now, especially if they’re permanent, and if/when they occur in others. Some divorces are made because the partner of a person “does not see the same man/woman she/he fell in love with”.