Totally. "10% of my life" sounds a lot more significant than "3.5 years"
Dickens himself couldn't do a better character introduction than these two sentences.
Eg https://www.zillow.com/homedetails/20488-Stevens-Creek-Blvd-... recently sold.
Anyway, I'm not accusing Cupertino residents of being upper class, I'm accusing them of being old.