Back when I got my first bike at 24, turning 25 in 3 months, most companies wanted to charge me the 24 rate for a whole year. TD was one of them.
StateFarm told me they'd change it when I turned 25. So my rate would be higher than TD for a few months ($430/month vs $340/month for a year). However, since my birthday was near the end of summer and because of how StateFarm calculates your rates, when I turned 25 I still "owed them" for the lower percentage I paid for the first few months so I actually paid $430/month for 3 months, then $350/month for another 3 months, then it dropped to like $140/month or something. Of course they didn't tell me that (just told me it would drop to $140/month at 25) until I called to ask why I was paying $350/month instead of $140/month. They blamed the misunderstanding on me.
That's just for the bike, btw, I had 2 cars on top of that. I paid a lot in insurance that year.