Hello there :)
I have dark brown hair and was considering get red streaks or red highlights in my hair however have been contemplating on whether to get them done or not.
Firstly,would I have to bleach my entire hair for this process? I'm against the use of bleach since it will damage my hair permanently and I wouldn't want that to happen.
Secondly, I'm getting these red streaks done only for a temporary period so would it fade off into other colours such as blonde over time? That would just look pathetic then :/
Your help is appreciated :)

For streaks and highlights bleaching the hair isn't required. Neither will your red streaks fade off into blonde.