[Latty]

I mean, all of them beyond the day-to-day?

I plan my life expecting to live to an average age, as I assume most of us do. I save for retirement, I make investments that will pay off at times useful to me.

If I knew I had a serious condition that changes my quality of life and life expectancy, that means I need to change my life plans. Sure, it may not be 100%, but working off the most likely outcome seems sensible.

Not to mention, no treatments right now - if I know I've got something, I can follow developments and if treatment does become available, I can do something. Obviously, you could monitor this if you knew you were higher-risk anyway, without testing, but not everyone knows that.