[benzoate]

I don't think I've seen anyone suggest that Uber is cleaner compared to other forms of transport, just merely more convenient than normal taxi services. I also don't think switching to pure public transportation is a viable solution in a lot of circumstances. Yes it can be very good when you're travelling between common destinations, but once your destination is more than 10 minutes walk from the train/bus station, the journey time quickly starts becoming burdensome. It's also nice to have a redundant system in place for the rare occasion that the public transport network fails (line upgrades, malfunction, bomb scares, etc).