I can't imagine it being very different for a first timer at, say, Yankee Stadium. Ever try driving and parking there?
I'm not a baseball fan but I think we have a way higher percentage of people in NJ who drive than people at Yankee games who drive. Obviously NJ has public transportation options but for a family of 4 on NJ transit it can be way more expensive for round trip tickets than it is to drive.
Plus we need fans to have a good experience to want to come back. All the Yankees need to do is just be good.