And by the same logic its still legal to shoot a Scotsman with a bow and arrow inside the walls of York. Quoting legal acts from the 1800s does not mean you would go to prison today for bunking the bloody train.
Look at it this way. Are you a gambling man?
If you are then lets say hyperthetically you didnt buy a ticket for tonight. Chances they will check you and all other 7000 people I would imagine are very slim.
If you win you gain £4.
If you lose and you are checked without a ticket your...