Read the following article and answer the question.

Well , I went out early this morning with the Toy Voyager to take some more photos of it in London . Unfortunately , I did n't have any money on my Oyster , so I had to find somewhere I could fill it up ... none of the shops were open ! I thought the one on the corner here was open practically all the time ( after all , those Polish guys start buying their beer at 6 am or so ... ) but I guess not on Sunday !

Why did they choose that day to go out for photos ?
It would be less busy because its the weekend