Public schools ban sunscreen, willing to let students get serious sunburn rather than risk "allergic reactions," worried kids will eat it

Are these public school teachers parents?  Are they really more worried about allergic reactions to sunscreen than they are to kids getting serious sunburn?  From Fox News:

A Texas mom is angry over a school ban on sunscreen that she says led to her daughter getting a severe sunburn during a field trip.
The North East Independent School District has the restriction because it considers sunscreen toxic, and fears kids will eat it, parent Christy Riggs, of San Antonio, told Fox News.
“The reality is: Children don’t eat sunscreen and they’re not going to,” Riggs said.
School district spokeswoman Aubrey Chancellor told ABC News that allergic reactions to sunscreen are one of the numerous reasons the district does not allow sunblock in its 72 schools. . . . .