As it was in The Days of Noah

The Days of Noah?
Genesis chapter six is a record of the state of mankind on the earth about the year 1556 from the creation when Noah was 500 years old: - men began to multiply on the face of the earth - they took them wives of all which they chose - there were giants... , men of renown. - the wickedness of man was great - the earth was filled with violence. - Noah walked with God. - judgment is decreed

It was because of the pre-flood longevity of mankind that the birth to death ratio was not what it is today. The population would have increased exponentially so that there were many densely populated areas as there are now. The Creator addressed this issue, And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years. (Gen 6:3), setting a limit of 120 years for the life of man, which is by our experience about the limit that may be reached by very few even today.
Violence would have been such that many would experience peril as a normal expectation of life. Tyrants would rule through gangs, private militia and brute force much like that in many unstable or war torn regions of the world today. Evidence the additional decree of the capital punishment statute immediately after the flood, ...at the hand of every man's brother will I require the life of man. Whoso sheddeth man's blood, by man shall his blood be shed: for in the image of God made he man. (Gen 9:5-6) Jesus adds: “they were eating and drinking, marrying and giving in marriage, until the day that Noe entered into the ark, And knew not until the flood came, and took them all away; so shall also the coming of the Son of man be.” This confirms that the following description was as applicable to the days of Noah as it is of the days in which we live: ... https://www.youtube.com/watch?v=uLCUyPw3lPo