✔ 最佳答案
Clean heads catch lice and clean homes+beds can get bed bugs.
It's normal for a kid to have lice, it's very easy for them to be caught from other kids. Bed bugs are most common in dirty homes and when clean homes have them, it means the occupants got them from some dirty people/places, so I'd say bed bugs are worse. If you don't hang in dirty places or with dirty people, you wont ever get bed bugs, but it's almost impossible to prevent kids getting lice.