If some of your family have inheritable diseases, you could find out if you have them or if your children could have them. Finding out that you will suffer from

If some of your family have inheritable diseases, you could find out if you have them or if your children could have them. Finding out that you will suffer from a nasty disease in the future could be quite a shock, though. People also spend money on things like handwriting analysis, personality questionnaires and measuring people's skulls to try to work out what they are like; genomics is at least somewhat accurate and based on reality! In practice, you'll get told things like "You have endurance muscles, not fast muscles" and "You probably have blue eyes" (mirrors are more accurate!) and "You have twice the chance of getting this specific type of cancer" (twice a very small number is still a very small number).