I think it's a great idea especially if you have some space for people to sit in and have cake and coffee. There are so many mums and babies around in the day in Honor Oak but nowhere decent to meet and have a coffee. I tend to go down to East Dulwich instead which is what most people I know do. As long as you have a little bit of space for pushchairs, a couple of highchairs and a baby change table in the loo, you should have plenty of willing customers.