It is so right to say live day by day, because you are so not sure if you will still be alive tomorrow better make the most out of each day.
Carrying a knife in England is as normal as carrying a mobile. 51 stabbings over the weekend, one guy was stabbed to death on a train by a teenage for no reason, a school kid was stabbed to death while leaving his school on the way home. is it abnormal ? no, it is not abnormal, it is happening every day in every corner of the country. The government must do something about it before it is too late.
You may consider top up your life insurance before travelling to England. it is not a joke, you must pay extra attention and care when being in public places.
Good luck everyone and have a safe trip