Carrying them into the i360 or Harry Potter World is not 'good reason' I have discovered to my cost. Security were concerned I may run amok in Gringott's Bank with my one inch locked blade and it was duly confiscated. If I buy a third one I must remember not to take it anywhere with security.You can carry a locking knife (or fixed blade) if you are carrying it "with good reason". It might be that you are going to your allotment, going fishing or going diving or you may be a tradesman going to work.
You can have locking knives at home.