Problem with learning from a video is not that "someone can do it". The PROBLEM is that as long as most can not without risk of injury it is dangerous to present it as a viable option on a respectable forum.
Of course some people are clever enough or have enough history to piece together instructions based on text or videos. Most people watch a video, consider the instruction to be as a bible and then try to copy every single movement to the best of their abilities. Any flaws in their actions they try to remedy in order to make everything look exactly the same.
What if what is shown in that video is how it is supposed to look once you trained it in a specific manner, such as kicking the head. You need to stretch properly so you do not damage your hip from trying to reach a height of your foot that is not where you should aim initially.
Or doing a punch with more power than your body is still equipped to handle, or a technique that you do not have enough balance to deal with. Or a hand technique and movement that because of crappy footwork causes you to bend your knee badly.
Before anyone has a chance to correct you of the most dire errors you have injured yourself and your time as a martial artists comes to an end before it even started.
And now we have not even reached the risk of you training yourself for years thinking you must be good because you have never seen any martial artist other than on video. Being bold you try to defend yourself from the wrong people and instead of running you end up in a gutter somewhere broken down to pieces.
So yes, start out by learning from videos, if it feels like a good idea for you. But please make sure to know it is your own decision and do not blame anyone if it ends badly. If you wanted a low risk, high gain you would have went to a class instead.
Of course some people are clever enough or have enough history to piece together instructions based on text or videos. Most people watch a video, consider the instruction to be as a bible and then try to copy every single movement to the best of their abilities. Any flaws in their actions they try to remedy in order to make everything look exactly the same.
What if what is shown in that video is how it is supposed to look once you trained it in a specific manner, such as kicking the head. You need to stretch properly so you do not damage your hip from trying to reach a height of your foot that is not where you should aim initially.
Or doing a punch with more power than your body is still equipped to handle, or a technique that you do not have enough balance to deal with. Or a hand technique and movement that because of crappy footwork causes you to bend your knee badly.
Before anyone has a chance to correct you of the most dire errors you have injured yourself and your time as a martial artists comes to an end before it even started.
And now we have not even reached the risk of you training yourself for years thinking you must be good because you have never seen any martial artist other than on video. Being bold you try to defend yourself from the wrong people and instead of running you end up in a gutter somewhere broken down to pieces.
So yes, start out by learning from videos, if it feels like a good idea for you. But please make sure to know it is your own decision and do not blame anyone if it ends badly. If you wanted a low risk, high gain you would have went to a class instead.