I think opening a butchers shop would be a massive gamble but becoming a retail butcher in a cutting plant or one attached to a slaugher house would be a option.
We have one attached to us and there always busy with hobby farmers doing all aspects of the trade and I think once capable could demand about 17 quid per hour.but it takes ages to learn the shapes of the bones.there's butchers and there's butchers.
Go for it and good luck.good butchers or people willing are in demand.nobody young these days dreams about becoming a butcher.and it's always fecking cold.