I live in Texas. I get Amber alerts for missing children that are 8 hours of interstate driving away from me. That's completely useless.
https://nymag.com/intelligencer/2013/07/ambert-alert-phone-4...
Even older parents called their kids to find out how to make sure it does not happen again.
Many abductions are vehicle thefts where the thief takes off without noticing or caring that there is a child in the car.
In one recent case, the thief threw the baby out the window into a ditch. Citizens who received the Amber alert found the child.