Java : 1995 : 25 y/o.
RoR : 2004 : 16 y/o.
Scala : 2004 : 16 y/o.
Django : 2005 :15 y/o.
golang : 2009 : 11 y/o.
Rust : 2010 : 10 y/o.
Kotlin : 2011 : 9 y/o.
Typescript : 2012 : 8 y/o.
React : 2013 : 7 y/o.
Docker : 2013 : 7 y/o.
Vue : 2014 : 6 y/o.
Not even the majority of the tech you mentioned is 7 y/o or less. And you can't name a single piece of tech on that list that isn't actively developed today because they're all actively developed, including Java, the tech that's been around for 25 years.
This is specifically why people talk about fad driven development and make fun of younger people who have no sense of history.
7 years just isn't a lot of time, anyone who thinks it is is a junior who thinks they're a senior.