The vast majority of people are raised by their birth parents which means 0 luck was involved. You are here due to their actions and are who you are due to their combined genes and situation.
If luck = it could have gone otherwise, that’s nonsensical; if you had different parents you wouldn’t exist to begin with, as you are literally a specific fusion of your biological parents. Similarly, if we take luck to mean something probabilistic, or something coincidental? Also meaningless in this case.
If luck = how your situation compares to others, I would argue “fortunate” is the better word here.
And of course there’s a parallel spiritual debate if you believe that identity to be separate (were you “assigned” to parents, was it deliberate or random, etc)