It's worth noting that a huge number of universities and colleges have shut their doors and doing online learning, which accounts for probably a large number of the 18-22 year olds and many of the 23-25 years olds.
Unemployment is a thing, but there are also many people who have gone home because they can't be social with friends during lockdown and for some, being social with parents is better than being alone.
And then there are people with kids who can't cope with the kids being around at home (instead of school) while trying to do work at the same time, so they use their parents' free babysitting services.
In short, there are many people who are choosing to be home for very valid reasons rather than NEET and economically forced to be home.
There really isn't enough data in this article to make much sense of how to interpret this. Numbers split out by reasons would be nice.
It has been a mostly steady trend since 1960 at 29% to now where it is at 52%. All of your examples of young adults choosing to live with their parents are because of COVID-19, which can only account for the 5% increase since February 2020, not the other 18% increase since the 1960s.
Unemployment is a thing, but there are also many people who have gone home because they can't be social with friends during lockdown and for some, being social with parents is better than being alone.
And then there are people with kids who can't cope with the kids being around at home (instead of school) while trying to do work at the same time, so they use their parents' free babysitting services.
In short, there are many people who are choosing to be home for very valid reasons rather than NEET and economically forced to be home.
There really isn't enough data in this article to make much sense of how to interpret this. Numbers split out by reasons would be nice.