someone asked this a couple of years ago and interestingly enough my answer has not yet changed. and it is no, i consider going 100% in bitcoin to be bad. bitcoin itself is still risky and pretty volatile and i would sleep better if i only had invested in bitcoin what i could afford to lose. on top of that bitcoin's adoption is not yet that big for me to "use" bitcoin only. so i still need fiat and i would have to keep selling bitcoin for fiat which is not something i like to do on a regular basis.