I started around age 50. Why ?, I really cannot say. It was like everyone I had to take care of had left home or died. For the first time I think I had the time for introspection into my own life - likes and dislikes and the why did I. I always thought mens cloths were totally boring and realized that I had made a lot of suggestions on what to wear to the women in my life. Then it hit me, those suggestion where for myself, so I gave it a try and love dressing up.
It could also be someting physical, I take alot meds for my heart and my whole physical system could be screwed up. The meds have destroyed my sex life and that also could be why.
Whatever the reason is, I am here now and do not think I am going back. I feel driven now and just finding so much happiness and fun !