I usually solder ear wire loops closed. It’s not because they are
likely to open while worn but because the wear and year they are
subject to in dressing table tops, jewelry boxes, handbags, etc
likely to work the loops open over time. If the dangle is heat
sensitive (e.g. pearls) I make the ear wire hook first complete with
soldered loop and use a wrapped link on the dangle.
Soldering the loops closed only takes a minute or so and leaves @e
more confident that the earrings will last.
All the best