I've never bothered making a starter for wine or ciders. More often than not, the problem is containing the blow-off. Fruit juices are mainly fructose & the yeast will just rip through it.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk