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That's a perfectly horrid attitude - but not an uncommon one even in my time, unfortunately. As if marriage is the only worthwhile ambition a woman can have. I imagine they thought it was the best choice for them.
Those who don't listen do sometimes end up dead, so parents tend to be very clear about the misuse of magic. Not that it prevents all accidents. I took up the silly notion of experimenting with different types of fire curses once, and ended up setting light to the curtains and my bed and not being able to contain it or put it out. It could have ended very badly.