I recently turned 50. Also long hair and now naturally almost 50%grey. And just kept tying it up. I will never go short cause here in Switzerland it really does seem to be something women do (short grey hair and cargo pants and check shirts). Anyways my hairdresser gave me a re-invent style ...a decent trim to below my shoulders and some front layers for fun. I'm really loving the loose natural look. Each beautiful grey hair tells a story. Do what makes you feel good 😊