One works in one's laboratory - one's chaotic laboratory - with students and colleagues, doing what one most wants to do - then all this happens! It is overwhelming.
Children had a special status - protected from the outside world - and they dressed for the part in a way that made that special status immediately visible to themselves and the adults.
Most of the time you will fail, but you will also occasionally succeed. Those occasional successes make all the hard work and sacrifice worthwhile.