If you rely on matches or a lighter to start a fire, you will be cold. Lighters have problems below about 40 degrees and matches get wet at the worst possible times.
I use flint and steel about 90% of the time, but do use a firesteel during heavy downpours. I do get a wild hair every once in a while and use a bow drill, but it is more to show off than anything. Cotton balls coated in Vaseline work even after they have been soaked, so a firesteel will light them in the worst weather.
All in all, you should get comfortable with all the gear and techniques you like to use so that you don’t end up cold and dead when things don’t work.