ELI5: How does my iPhone know where I’m going without entering it in maps?

Title mostly explains it, but for more information; Tonight I attended a staff event for a church that I attend, and afterwards the pastor mentioned that everyone is welcome to go to the local Andy B's bowling alley. Me and some buddies are going together and I told one that l'd just follow him. What l'm curious about is that, when I got in my car and connected to Bluetooth, my iPhone told me the time it would take to get there, even though I never input the directions and I've also never gone

I honestly could not think if any other way that isn't something regarding my commonly searched locations.

If anyone knows why then l'd love to hear about it