Yes small amounts are legal in Spain.
You can grow for your own use and you can get a licence to sell to special clubs.
Your friend missed a good opportunity I am sure he could have kept it hidden.
We have plenty of water here so I think I will give urine a miss although we do pump the water from our septic tank onto the garden and compost heap.
I think everyone should try and grow their own food.
But I wish you and Venezuela the best of luck in the coming year.
Stay safe and healthy my friend.😎

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