Sincerely... yes, i would like to reach that age... since it would be somewhat interesting to grow old and see the third generation which appears from your blood-line, starting with you. Although i would rather die if at such an age it would mean for me to go senile or ill...
About what would i do... well probably i would try to philosophize with someone else of my age... and obviously enjoy my last years around my great-grandchildren, not taking care of them... but seeing them once in a while.
Also... Kas, please understand that the one which you show in that picture is a unique creature... it's only one and that's the end. Others would be only copycats. But i doubt you can do something like that at 90+ years...