Do I have to have a teacher to learn Chinese martial arts? Can you learn it by yourself from videos?

Some things can be learned by oneself, because these things are developed late, immature, surface things are still undeveloped there are many, but the martial arts have thousands of years of history, not to mention the surface things, even the deeper things have been researched and developed countless times, if you don't stand on the shoulders of the giants, do you think it is possible for you to become a talented person? Of course, there are some limitations, but combined with the current national conditions, I think it is still appropriate. Traditional arts such as martial arts, color painting, and comedy have never been able to be mass-produced, and they are all taught in small workshops, with masters leading apprentices. Even though! Even though countless industries have gotten rid of this type of teaching, they haven't gotten rid of it for many years, and the pros and cons of changing private schools to schools are now gradually surfacing. There are many people with skills will not gratuitously put their own years of hard work, spend a lot of effort to learn things **** enjoy to others. This does not matter whether it is selfish or not, it is the most normal. Of course we can't rule out a few people who are like this, but how many can there be? If there are, can you guarantee that you will find it on the internet? I think most of the network, or the vast majority of them have the real thing demonstration but not detailed explanation; or a one-time explanation of some of the things that must be followed for a long time to study the correction of errors, continuous teaching in order to learn; or else some fur. So if you don't learn from a teacher, I think the chances of learning well are almost zero.