Why is dratini so hard to catch?

Dratini is often difficult to catch due to its rarity in the wild, typically appearing in limited locations and under specific conditions. Additionally, it has a relatively low catch rate, making it more elusive during encounters. Its evolution into Dragonair also means players might encounter a stronger Pokémon, increasing the challenge in capturing it. Furthermore, Dratini's presence in specific games or events can limit its availability, adding to its difficulty.