Age is a major factor in your car insurance rates. Old and young drivers do pay significantly higher premiums than people in the middle age brackets.
When you turn 25, you should look at your car insurance and expect it to drop, at least somewhat, if not a lot. You should get multiple quotes and
perhaps look to change providers if your provider was less expensive as a young driver, but now there might be a better option.
Again, as you get older, be sure to keep an eye on your rates as different companies have different parameters and it might behoove you to change
providers as you age.