You should get genetic counseling with certain ethnicities.
example:
thalessemia
If you have thalessemia You may chose to go ahead and have children with someone who also has thalessemia. You may choose to risk a life of misery for your child because it is not guaranteed it will get the dreaded transfusion curse.
But you need to go into it with full knowledge of what you are dealing with.
Or I suppose you could let the chips fall where they may as in God’s plan..but I am the type that wants to know what the heck I am risking.
btw, if there are any Ashkenazi Jews here.. you are on the short list to qualify for free genetic counseling as it relates to breast cancer.
Can’t remember if you need one additional factor or if that ethnicity is enough.