This is a very healthy activity indeed. And I salute you @lyndsaybowes by doing this HUMANITY. Nobody bothers now a days to get some time for others. But I believe there are still people alive who live in this same world with a very KIND and HUGE HEART for HUMANS.
Indeed you're the inspiration of several people by dong there ACTs of Kind. Your efforts will never waste and I believe you will get reward and reward could be in the shape of LOVE and RESPECT, which you have already earned.
I wish I was there with you guys to join this beautiful activity of CHALKING. The impact of this activity is too huge but looks a very small one. Please feel my emotions with you guys in this regards I really miss this one.
All the best and Stay Safe!