Colour or B & W ?

I went for some sunflower seeds for our wild bird feeder and spotted these wheel barrows lined up outside. I didn't realise there was such a wide choice of colour and size. I obviously need to get out more.
And another thing, the warning sign says Fork lift Trucks are in use and children must be supervised. Should children be allowed to drive them even if supervised?
I don't know what the world is coming to!