Well, this proves that the domain name age is essential for Google as the age is a part of the ranking system and the search algorithms. Usually, well-established and popular websites have older domains or we can say that websites with older domain names are better and well-established.
The newly registered websites can be well-established and popular as well, but it will be a more challenging process. Google considered the newly registered websites as a spam, so you need to invest an extra time, effort, and money to prove Google they are wrong.
In a nutshell, even if you are owning a legitimate site but you use a new domain name, there might be a possibility that Google will look at you suspiciously and would do anything to keep the internet users away from your site.