Many people argue that our behaviour is shaped mainly by culture or personal values rather than by formal law. However, I agree that law significantly changes behaviour, because clear rules set firm boundaries and strong incentives for every individual. Through its sanctions and rights, the legal system guides the daily behaviour of people in areas such as driving, work, and spending, and this makes obeying the law a rational habit.

Firstly, the strongest reason that law changes behaviour is deterrence. When the penalties within a rule are predictable and enforced, people adjust their behaviour to avoid loss, and each individual weighs that risk. For instance, speed limits set by law reduce dangerous driving, because the fines and licence points impose real costs on people. Therefore, repeated compliance with the rule becomes routine, which shows that law restrains extreme behaviour and normalises safer conduct across whole populations.

Secondly, some people claim that laws merely reflect existing morals and so cannot change behaviour. However, this view is limited, because new regulations often arrive before social acceptance and then reshape the behaviour of people. Indeed, when a law banned smoking in public places, many individuals resisted at first, yet firm regulation reshaped norms and changed everyday behaviour.

In conclusion, although values matter, law remains a powerful driver of behaviour for people and for each individual. By combining deterrence with new rules, legal regulation influences the everyday choices and long-term habits of people, and thus effective law does more than punish, since it actively steers behaviour towards safer patterns.