That is shocking and medically risky for genetic health problems.
Of course, with one guy reported to have fathered 150 children by as many mothers, thru IVF - we can anticipate a lot of boys marrying their half-sisters and having children with a lot of medical problems.
good point.
Should children have the right to know...at some age...who their father is in the case of IVF? or adoption...or ....you can think of more examples....
I’ve wondered about that. How would you know whether you are biologically related to anyone you are dating? Two people could have the same bio father and no one would know it.