This thread is very apt for me (isn’t it odd when that happens?). I have had streaks then highlights for 50 odd years, lately being dark/bleach stripes almost. I decided to stop it all when my hairdresser pointed out the bad state of my hair. Due to chemo, age, low thyroid, menopause etc etc, my hair was thin and breaking off and not keeping the colour in. I kept having colour done but gentler shades of just semi permanent. My hairdresser always used to say if I stopped colouring it, I’d age 10 years immediately but then he would, wouldn’t he?
I’ve now decided to just go for it and have a more ashy colour put in which we plan to get more and more ashy and perhaps put a violet tint on next time. My hair is certainly stronger and a bit shinier already from stopping the bleach. I spend a lot of time in the sun with hats and colour protect product on so I hopefully will be free of all that soon! I do miss my lovely dark bits but it probably will suit my skin colour better.