Hula hoops

I used to love hula hooping. A couple of years ago I bought one which was quite heavy and I couldn't master it. So, I bought a light plastic one and I still couldn't do it!
I've tried and tried but I just can't do it any more! Is it my age? I was quite fit at the time.

I have one in the garage. I keep looking at it but so far it has done nothing for my waist.
Perhaps I should try staring harder?

Would you really use it a lot? You would need a fair amount of space for it to work. For me it would be a one day wonder if that long.