[dexwiz]

You can set up a home lab, in many places it is legal if you spend the money to set up a proper lab and register with local regulators.

But chemistry is very dangerous. You have to properly dispose of waste. Many precursors to drugs are poisonous, flammable, carcinogenic, or even explosive. Even trained chemists have lab accidents. Many chemists over a certain age are blind or deaf on one side.

You know who builds DIY chemical reactors? People cooking meth. It doesn't end well.