That is a good thing because I know some who haven't had such a good experience. My cousin has tried to find her birth parents not so much to reunite but for medical background.
Many do not. You have to be prepared for that possible outcome when deciding to search, too.
Myself, I waited until both my Mom & Dad had passed away before searching because I knew it would have broke their hearts (even though they said had said otherwise)
My route was much easier since Birth Records became open to Adoptees as long as the birthparents had filed no rejection.
My birthmother was 16 and father was 19.
You somehow feel complete and at peace when the missing pieces of the puzzle finally do connect.
I hope your cousin one day has as much success as I had in finding mine.
It finally puts an end to all the mysteries..