Well maybe not all of us!

Without politicalizing, as in any living species, it's the born female that produces the egg to populate an environment for the propagation of the species, but not all species follow that rule. There are also other methods of reproduction like asexual, cloning, and whatever- it's a biology thing.

Now, if anyone wants to be politically correct and individualize it on the human side, anybody can do whatever they want and should have the freedom and right to do so- to live a life as they see it, feel it, want it, need it, believe it, ...without parental, social, and eco discrimination.

The OP is distraught over being told something by her parents that she obviously feels something strongly about. We must remind the OP that what her parents said was just their opinion and that it should have no bearing on her life- it's hers to do what she pleases with. Have a child, have a flock....they'll love her all the same and their grandchildren(s), too.