It's a no brainer for me. I happily pay my vat (tax) on compost and notes etc.. (tax).Why is booze and Tabaco legal, and a plant not? Could make so much in tax for research and treatment. Years ago it was compulsory to grow hemp in England. Guess they hadn't created the NL#5 strain then !!
You have to live on your toes, trying to be a few steps ahead. You should never get complacent. But if it's personal use you won't get a custodial, unless you've already introduced yourself to the law, or greed. If you've done a crime, don't do a crime.
Happy growing !!