Is a determiner considered an adjective or a separate part?

Question

I came across some blogs which states that determiners are types of adjectives (according to traditional grammar), whereas wiki (which I do not entirely trust) indicates some key differences. after studying both determiners and adjectives, I found that they share some similarities, specifically: - Possessives - Demonstratives - Quantifiers> Example: "My" crew members are lost.To stretch my question more: - Is "My" an adjective or a determiner? - if the determiner hasn't a separate entity from the adjective, what is the proper/common distinction for it?

Answer 1

All determiners are adjectives; not all adjectives are determiners.