Anecdotally I haven’t seen a plug in Belgium that didn’t have them that also wasn’t ancient. Dunno if the RGIE requires it, I can’t be arsed to find out, but the risk/reward for manufacturers considering lawsuits probably tips it in favor of safety given how inexpensive the mechanism is.
Also it is worth noting that the plug hole is much smaller on EU outlets than NEMA, and recessed. Even with exposed conductors it would take a determined toddler to find something small enough to reach inside (basically a needle or small screwdriver which they should not be playing with to begin with).
Anecdotally I haven’t seen a plug in Belgium that didn’t have them that also wasn’t ancient. Dunno if the RGIE requires it, I can’t be arsed to find out, but the risk/reward for manufacturers considering lawsuits probably tips it in favor of safety given how inexpensive the mechanism is.
Also it is worth noting that the plug hole is much smaller on EU outlets than NEMA, and recessed. Even with exposed conductors it would take a determined toddler to find something small enough to reach inside (basically a needle or small screwdriver which they should not be playing with to begin with).