Hi there,
That is a tough question... for me, I had AS for 11 years before marriage and 12 before Mateo was born. I would do it all over again, even if I learn that he develops AS. I think in the future there will be so much more known about AS and treatments.
I do however believe my son will see so many more problems in his lifetime. I look at the worlds population growth and wonder how we will support it all several decades from now. I believe it will only lead to more wars as resources become more valuable. I am somewhat pessimistic about long term future of this planet.
Tim