Have been driving Model 3 for a month. Love it. Today I hopped in my 2012 LEAF, had forgotten the key fob so doubled back into the house to grab it, then popped it into Drive, and then realized that I had to turn the car on first if I actually wanted to go somewhere. Yesterday I drove my wife's 2011 Lexus RX450h, and when I was done I had to remember to put it in Park, and then when I walked away from the car I had to double back to lock it. Funny how fast the brain adjusts to Model 3. The notion of a key, or a fob, or even a power button, let alone selecting P, seems historical after just a month with Model 3. Living in the future is a lot of fun. Thanks to all at Tesla for making it possible.