for obvious reasons.
You haven't even mentioned your arguments. So how can the reasons be "obvious". The introduction needs some work.
Probably, the courses schedule do not meet their needs, they can find more interesting material from library or internet.
The second part of the sentence is confusing. I couldn't come up with a suggestion. Can you clarify it?
Oh, I see, what you're trying to say. Do you mean to say that some people may lose their focus on the other subjects if they only concentrate on their interests, and hence, these people should choose the self study option?
^^Whatever maybe the case, you are not being clear.
one does not need much efforts to find failed goals from whom that was not able to attend university or college.
This is another one I didn't understand.
The majority of people would find a four-year education from university or college
is essential
forto their success.
First of all,
a university or college
lots of experienced instructors who
do not only give knowledge,
Use the indefinite article 'a' while using the singular form of university. Like this -- a university or college