It saves your time and money!
Let's count average cost of training a new employee in organisation
$1,252 per employee
According to the Association for Talent Development, organizations spend an average of $1,252 per employee on training and development initiatives. Though this figure is a useful starting point to help give an insight into potential spend on employee training, it's just an average.12. 1. 2022

Source: ATD.org
And when an employee leaves his position, this expense happens again...
Or not? :)