Thing is, there is currently only an american company that provides a combined child safety cap with built in glass dropper for their glass bottles.
They are patented and bloody expensive, the other available ones from china are not child proof but tamper proof until opened.
Best to be safe and cover your arse and use the standardised plastic bottles.
We only use PET as the super squeezy ones are NOT ideal for long term storage due to leaching, and no one wants to taste plastic in their juice.
I know some people don't like them. But its so cheap to buy a squeezy one to decant into its no biggy.
PET is a happy medium between the cloudy and glass bottles.