On my first flight with my second airplane I learned the hard way about the weather-vane effect. In a cross wind a tail dragger is more likely to be effected by a cross wind on landings. This can put you in the fence, or into another pilot on the flight line. After I graduated from a trainer I had an ultrastick which was also my first tail dragger. I ended up in the fence on my first flight. I wasn't aware of the weather-vane effect and didn't have enough rudder to compensate for the cross wind. The cross wind just blew the tail around and she nosed into the fence. An airplane using trike gear provides a bit more control to avoid this, especially if you have the rudder throw set up for a new pilot on a trainer.
yup, but actually you put both ailerons into the wind to compensate for the wind, and rudder for the p-factor.