Because “intern” is not about age. It is about attitude.
An intern shows up curious, open, useful and ready to contribute, with no ego, no politics, and no need to prove a title.
A senior professional brings immense experience. They have led teams, managed crises, built organisations, made the hard calls, failed publicly and recovered privately, and earned decades of compounded judgment.
They come in to help. For as many hours as you need. For as long as the problem needs them.
It is not a step down. It is a new badge of honour, for people who have earned the right to work differently, and for companies wise enough to put them back in the room.