I'm 21 years old and I just learned it's right from the get-go and not right from the gecko.
Do you often hear people saying gecko?
I saw my friends making mistakes with English's structure.
Situations like this do not need to have a lot of attention, at least in casual conversations. It is important to concentrate on more important things in life and put your energy in a more positive and necessary direction.
Nah, people need to learn their English.
I can understand why you want to help others improve, especially since you learned that you were making a grammatical error earlier in life, but correcting others can be annoying to them.  It's okay to revise someone's written work, but if they are just having spoken conversations, it's best to just let odd choices of words be used.