We leave our low beam lights on all the time for safety.......during rain we recheck to be sure they are on usually come on automatically, but we still check. Think lights and wipers on during rain is the law here in Florida.
Read a report several years ago about using lights in daytime for safety........it is true that other vehicles are better able to see you with those lights on and once you get used to using them you will remember to turn them on and off it they are not automatic.
delma