Stomach is the right place where hydrochloric acid

Stomach is the right place where hydrochloric acid is required to be secreted in the gastric juice.
Describe any three points to justify this statement.

Stomach, serves as a right place due to the following reasons
(i) HCl inactivates the salivary amylase and prevents further breakdown of disaccharide carbohydrate.
(ii) It kills microorganisms and lower the pH of stomach between 1.5-2.5 (very acidic).
(iii) Pepsinogen (inactive precursor of pepsin) in presence of HCl is converted into pepsin
(principal protease of stomach).