Member Since: 16th Mar 2016
25th Jul 2018
You underestimate the time saving as you can start packing up / leaving as the transaction goes through rather than having to stand there with your card in the machine. A queue goes much quicker if a few are using contactless.
Banks take the risk of the fraud.
Actual fraud rate using contactless is apparently low, for example see this article: https://www.which.co.uk/news/2018/02/brits-lose-over-5-6m-to-contactless...
Your objections seem to based on fears of what might happen not facts of what has happened.