Visiting all 30 Major League ballparks is a nice idea and a good way to see the country from stem to stern, but it would take more dedication and vacation time than most of us have. I’m at 11. I have friends who’ve been to 13 and 17. A Menifee man tells me he’s been to 27, and only to see the Dodgers — speaking of dedication. I write about all this in my Wednesday column.