Should be ok. The most likely problem is the age of the yeast. If it doesn't form a krausen (scummy foam layer on top) in two or three days, get a fresh packet of yeast and toss it in.
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