Okay that TV wobbles when articulating wall mount is extended?
If the TV weighs less than or equal to what the mount is rated for, it should be fine.
However.
You could upgrade to a sturdier mount rated for yet more weight, (increasing the safety factor) and perhaps of a more robust design (i.e., mounts with two sets of arms holding the TV, rather than a single arm) if it would provide &quot;worried parent peace of mind&quot; (albeit at some cost.)