Some times I spend my bitcoin to do some online shopping. But that is just very small percentage of my total holding.
I also have spend some coins for online shopping or a bit of gambling but I did not spend that many. I know that I can make money with Bitcoin so I try not to spend to may Bitcoins.
If you are in any sort of emergency you should spend it, I spend only when I need it and that also is smaller amount,majority of them I am holding for halving.