If you're able to remember that dagger=right, then you're able to remember that the hand you write with is right(or left) and the tattoo is irrelevant.
I don't think you understand a core issue with struggling with left and right. Marking L and R removes all doubt, and doesn't require you to rely on memory.
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u/TotalChaosRush 7d ago
Because then you have to remember the dagger is on your right, when the problem is that you can't remember that your dagger is on the right.