You don't have to worry about keeping your current job, but getting a different one becomes a lot harder. Your 27 year-old interviewer might be thinking "You're my dads age, and my dad is crusty. No way you can wrap your head around lib-of-the-week.js"
> You don't have to worry about keeping your current job
Depends on the job. There are employers who recognize the value of somebody who has broad experience, and who can/will do things that are necessary but not fun. There are also employers who only measure hands-on-coding skills, and/or who insist that everyone should be on a "growth path" even if they're already at a higher level than most will reach. Good people don't have to worry at the first kind, and very much have to worry at the second.
You don't have to worry about keeping your current job, but getting a different one becomes a lot harder. Your 27 year-old interviewer might be thinking "You're my dads age, and my dad is crusty. No way you can wrap your head around lib-of-the-week.js"