This will not work AS-IS READ below.

Land owners have a RIGHT to keep Children avatars and TINIES off of their grid. This script enforces that rule in a way that the script owner will decide. This code was not made to offend anyone, there is no malice in it's intent, this is a tool for admins, nothing more.

This code was modified from a Second Life FREEBIE and converted to OSSL

This is a re-issue of the ChildGate software Ozone Miniverse uses. Simply put, this will eject child avatars. Any avatar below the lowest height RUTH can be which is 1.6m. You can also define attachment names on a separate card. YOU decide how the avatar is ejected : TP HOME or KICK. This script WILL NOT work as-is you will need to define that in the code yourself. 

YOU NEED 4 Notecards in the prim: You can place what you need in them.

1. cav_forbiddenattachmentnames //one per line - attachment names you do not want

2. cav_forbiddencreators //one per line - unwanted creator names //mine is blank

3. cav_forbiddenwords //one entry per line

4 cav_heightlimit // 1.6 is default

WARNING: There is an intriguing caveat. ANY poorly rigged mesh can send an incorrect height to this scanner and trigger it. For instance, it has been reported that meshes from Maitreya (petite & variants) are processed as a child. Some grids do not allow 'known' SL avatars in their database so this could be a 'desirable side effect' for those operations.