Well, its not expressly important. What is important is the teaching.
From my studies, I believe its important if one desires to grow in knowledge of The Word, and knowledge I assure you, knowledge strengthen's faith, not the oppissite
In understanding these things, it mentally prepares one for the Incredible deception that IS going to take place
prior to Christ's return, as in Daniel CH:12 and Revelations.
ALL of the things spoken about in this thread have relevance; but without the book of Enoch, which is a very contentious issue on here, one will NEVER be able to draw any Real conclusions.
For that matter, there really isn't any agreement on anything and that includes Christ too! pretty desolate situation if one wanted my opinion LOL.
I don't know about the rest of you's; but when I was growing up, there were many pictures in the stained glass windows that had some VERY strange illustrations on them. When I inquired about them; I was just told that we were not to understand these things, they are for the priest's, cardinals, bishops etc... to be concerned with; LOL upon reflection.
The generations prior to Abraham lived up to as long as 900 and some odd years; Enoch is the 7th generation from Adam & Eve, the FIRST preacher of Righteousness. So there IS aprox. a possibility of 7000 flesh years right there;(but not quite; because NO man would live a GOD'S day (1000 years); AFTER the sin in the garden) And there IS Real History that pre-dates Adam & Eve.
Should investigate what Enoch was prophesying of;
IF! you really desire to Know