I don't know about mandatory, but well funded and expected in that period would go a long way. Child rearing, especially, will surface things you might have not known were there or were so painful. You might also need a variety of help, from talking therapy to cptsd/desensitising. To parents feeling overwhelmed and daily triggered suddenly, in the presence or thinking of your children, you're really not alone, and I strongly advise getting all the help you can, as soon as possible.