In all seriousness, it doesn't matter what age you get your degree.
Ask yourself this
If you're on the fence, think about your life right now and think about your life five years from now. Would you rather be an engineer, or keep doing what you're doing right now?
When we look back on our lives at 80 or 90 years old, we're going to wish we had done the things we always wanted to do. If you want to be an engineer, I think you should become one, no matter how old you are.
There's no age limit
There is no maximum age for getting an engineering degree.
In fact, if you're a little older, you might take engineering school more seriously. You're either paying for the degree yourself, taking out a loan, or your employer is paying for it. So you'll probably take your studies, networking, and getting experience way more seriously. That leads to better outcomes.
Run the numbers
If cost is what's holding you back, put in what your degree would cost in the ROI calculator. It shows how fast each engineering major pays for itself. Not sure which major fits? The major quiz starts with the life you want in 10 years and works backward.
Don't look back on your life with regret. If you want to become an engineer, go get the degree.