I can manage the amount I’ve saved myself (but with a higher net income, though). And I sometimes have to hear from the banks why I have saved so little. The question should actually be why my wife and I don’t have bank-compatible parents.
But I think 2.5k is a decent savings rate even with more net income. It is only that high because we don't pay any rent or utility costs. I actually want to go back to 37.5 hours, then another 300€ will come in. There is plenty of work for that.