Why does a scientific theory take longer to develop than a hypothesis

It takes longer because in a scientific theory, you need to do research on the subject which takes longer than stating a quick hypothesis.

Explanation: Scientific theories are created through the process of the scientific method. Observation and research lead to a hypothesis, which is then tested. Hypothesis is when someone makes a prediction about some new phenomenon that should be observed if the theory is correct. Again, this prediction is called a hypothesis. A hypothesis is an opinion, because people have different views on certain subjects.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.