Between death dates.

I'm closer to Y's death date than X's death date.
Wonder if I will beat Betty White's record.
It's too late to flame out in a glaze of vomit.
Just hoping I don't out last my bank balance.
As long as my death date's later than my parents',
and there's no new birth date to be remembered.
No worries if other generations fall off the calendar.
No strings attached I can roam free of charges.