GPS tracker for a child

[jack stone]

my 5yr old son's bus driver for the way home from school is very inconsistent. i want to put a tracker in his bag so as to know when to come outside to wait from him. are there any suggestions for a realtime tracker without monthly fees. has anyone actualy done this?
thanks

I would be be willing to use my own sim card with a low cost data only plan.

[yesitsme]

Many schools have and provide GPS location of their buses, in NYC they're required by law to provide it to the parents

[yesitsme]

https://www.theyeshivaworld.com/news/general/1660037/new-law-all-nyc-school-buses-to-have-gps-tracking-all-parents-will-be-able-to-monitor.html

[Definitions]

my 5yr old son's bus driver for the way home from school is very inconsistent. i want to put a tracker in his bag so as to know when to come outside to wait from him. are there any suggestions for a realtime tracker without monthly fees. has anyone actualy done this?
thanks

I would be be willing to use my own sim card with a low cost data only plan.

Any smartphone can do it. Keep it in a waterproof zip lock bag on silent. Use the find my phone option.

Charging it will be annoying though.

If you want to get fancy you can get a geofencing app that will notify you when it gets in a certain area