Thanks for comments.
When my hair is longer though, I have no real styling options... It is thin in the front and in the crown .. With a piece I could have styled it in quite a few ways.. (that's why I was wearing.. and maybe will be wearing in the future again)

I wasn't considering shaved head or 3 days stubble as an option. Now I'm getting used to it and it is not that bad (1 week stubble maximum though).
It is also good to know that I can quite easily come back to wearing.
cheers