I'm writing an essay on the hubris of Jason in Euripides Medea and while reading it, I still don't understand what he means by this line. So Jason is explaining to Medea that he left her because he wanted to ensure that his children would be rich and live a life like a royal and then he says this:
I wish to raise my children as befits my noble house,
and father brothers for these sons I’ve had by you;
to put them on a par, to unify the line,
and so achieve a happy life
For you … what need of children do you have?
Whereas for me it cashes in a gain to benefit
my living sons through those as yet unborn.
Not bad, my long-term planning? (Lines 562-568)
For you … what need of children do you have? This is the line I'm confused about, is he saying that she is only needed to create children and that she isn't useful for anything else?