Yes, family and household protection is available, and it can be done as a combined ritual covering everyone in the home or as individual castings per person, depending on the situation.
For children specifically, I use a gentler form of protective work, and I'll always explain exactly what's involved so you feel comfortable with what's being done on their behalf.
If different family members are dealing with different issues — one child struggling at school, a partner dealing with workplace conflict — I can tailor the protection accordingly rather than using one blanket approach.