Is that really a problem for engineers earning >~60K a year?
Expensive diagnoses like cancer or pregnancy are not good for the career.
Of course, it being optional doesn’t stop people from hyperventilating about our reduced fertility rate.
PS: not me... family, friends & acquaintances who had spent decade(s) with employers and after returning to work able bodied only to be subsequently let go for reasons other than their abilities to perform their duties.