Ridiculous clothing instructions for playtime

I was watching an alarming segment on a morning show on TV Asahi this morning, highlighting how Japan is turning into a society that discourages children from playing. It is a very worrying trend, that I had noticed myself in recent years and coincidentally had just had a lengthy discussion just this past weekend with Japanese parents with similar views. 

Of the various information provided in the show this morning, the one that I found most shocking is pictured above - a sign with ridiculous detailed clothing instructions for playtime in Shimonoseki City in Yamaguchi Prefecture. I think the photo speaks for itself but let me add a rough translation. On the left it says:

• Lets play in proper clothing (insert eye roll here!)
• Remove scarves
• Remove bags

On the right is says:

• Fasten the front buttons of jackets
• Remove mittens that have strings
• Wear shoes that do not come off easily

I admit, scarves can be dangerous when long and left hanging freely as they can catch in a multitude of things. But honestly, I don't think I've ever seen children wearing long scarves in a playground. It's not the point though, is it? The point is do we really need these sorts of off-putting signs with ridiculous clothing instructions for playtime? I think it's over the top, but I would like to hear what you genuinely think?