Perhaps that’s ok in busy central locations where a street cleaner will be along shortly to pick it up, but the problem is that people are now accustomed to dropping litter and do the same in suburbs, parks, and countryside where it just accumulates.
How do we solve it? We need to teach environmental education in schools and try to stop littering habits before they form.
But also, I think a great application for robotics technology will be litter picking, street-cleaning robots!