I have a questions regarding SFO's departures and arrivals since the airport generally uses different runways for these procedures. Winds at SFO are usually 280 degrees. That means that aircraft landing on 28L/R are landing into the wind. No problem. However, does this mean that all 1L/R departures experience a crosswind, 90 degrees from the left side? Can someone confirm this statement? Why was the airport developed in such a manner? Obviously, it's not an issue, but I must wonder, how do pilots feel about the runway configurations? Thanks for any insight.