I've crocheted since the age of about 10. I'm 52 now. Knitting always eluded me until 3 years ago. Crochet is faster, easier by far, and you get results and completed items quicker.
I can make a crocheted baby blanket in a few days, where as if I knitted one the same dimensions it would take me atleast 3 weeks.
Each craft has its' different charm and place and it's good to know how to do both.