[yellowapple]

> So is it a misdemeanor to track your child via their cellphone in CA?

It's worth looking at the whole section:

    CA Penal Code § 637.7 (2017)  
    
    (a) No person or entity in this state shall use an
    electronic tracking device to determine the location or
    movement of a person.
    
    (b) This section shall not apply when the registered
    owner, lessor, or lessee of a vehicle has consented to
    the use of the electronic tracking device with respect
    to that vehicle.
    
    (c) This section shall not apply to the lawful use of an
    electronic tracking device by a law enforcement agency.
    
    (d) As used in this section, “electronic tracking
    device” means any device attached to a vehicle or other
    movable thing that reveals its location or movement by
    the transmission of electronic signals.
    
    (e) A violation of this section is a misdemeanor.
    
    (f) A violation of this section by a person, business,
    firm, company, association, partnership, or corporation
    licensed under Division 3 (commencing with Section 5000)
    of the Business and Professions Code shall constitute
    grounds for revocation of the license issued to that
    person, business, firm, company, association,
    partnership, or corporation, pursuant to the provisions
    that provide for the revocation of the license as set
    forth in Division 3 (commencing with Section 5000) of
    the Business and Professions Code.

I guess it depends on how you define "vehicle or other movable thing". Children are technically things and they are technically movable, so if the child didn't consent to being tracked, I guess it's technically illegal (and since a child probably does not fit the definition of "vehicle", it's not sufficient for the "owner, lessor, or lessee" of a child - i.e. a parent or guardian - to provide that consent).

However, IIRC there are a lot of cases where a parent's consent is considered to be equivalent to the child consenting, and this might be one of them; as long as the parent consents to the child being tracked, it'd be legal in such a case.

Obligatory "I ain't a lawyer".

[Reelin]

Agreed in general, but the thing is... children can't generally enter contracts or otherwise "consent" to most things in a legal context. True that parents can be stand-ins sometimes, but I'm not at all clear on what the limits for that are.

I too was initially confused by the "or other movable thing" part, but I'm pretty sure the the cell phone itself qualifies as a movable thing in this context.