My American brain tells me this is an insane way to live. No work life balance. It's horrible inefficient, as you can't downsize, or compete international like this. You're forced to hangout with coworkers.
However, having this long term stability with work is something that is sorely missed in the US. A pension? Job for life?
No one gets these things anymore.
If you don't have a 401k benefit, you can fund an IRA yourself.
Many folks are learning the hard way that you really don't want to bet your retirement on a single company remaining both solvent and honest for the next 70 years.
Sure, companies 'evolve' (for better or worse) and theoretically your job changes as you climb the ladder, but surely you job learning and loving work if you do the same thing for 40+ years?
I guess this is the difference between people who see work as an obligation vs an opportunity.