Take a part-time job.

Take a part-time job.

To begin with, (it is a vital competence that - this does not clearly convey the meaning) managing their time between study and work is a vital skill. In fact, parents who encourage their children to work can make their children leave (OR "step out of their comfort zone") their (this comfort zone is related to the children specifically) comfort zone. For example, they can practice doing a good schedule with daily work. In  Another positive aspect is that they will NOT waste the leisure time because they know that saving time is very important. Therefore, In my perspective, (this essay is your perspective - when you said "Personally" in the introduction (your thesis statement) you made this clear already )taking a part-time job is the best training for a student to prepare for adult life.

Secondly, even though is a great training for time’s management when they taking a part-time job is a great way to learn time management skills, it is also important (more significant - this contradicts what you said in the last sentence of the first paragraph where you said that a part-time job is the "best training") that juveniles could accumulate experience in the working environment. For instance, the juveniles seldom have the chance to do a real job in society. As a result, the having a part-time job in their study-life , while they are studying (extra information relative),  is a good experience. In On the other hand( This should not be used as you are not writing an opposing statement or a different point of view. You are adding an explanation/reason to support your topic sentence of this paragraph), Another reason is that they can broaden their horizons in this competitive society. That The experience that was is accumulated by through a part-time job will become a concrete (an awesome - this sounds a little informal) foundation for adult life.

Take a part-time job.

Take a part-time job.

Do you agree or disagree with the following statement?
One of the best ways that parents can help their teenage children prepare for adult life is to encourage them to take a part-time job.
Use specific reasons and examples to support your answer.

A prevalent topic which is undergoing debate currently is whether it is beneficial to the teenagers if their folks encourage them to pursue casual jobs, in an attempt to groom them for adulthood.  (parents assisting their children, by to prepare for it is beneficial to help their teenage children prepare for adult life and encourage them to take a part-time job is - try to use some words different to those used in the topic (synonyms and paraphrases) )-(prevalent topic undergoing serious debate - move this to the beginning of the sentence). (Two different options obviously exist to support or to oppose - This is a repetitive statement which has the same meaning as "debate" - where there are two different views). After pondering the opinions from several aspects, Personally, I completely (always state the degree of agreement or disagreement) agree with this ( using relative words such as "this", "which" etc. will boost your score) opinion/ statement (idea that encouraging children to take a part-time job(that it is one of the best ways to encourage children to take a part-time job - this sentence is not clear as to what you mean to say and is not necessary also). There are two main reasons for this. Firstly, ( these discourse markers will be more appropriate in the body paragraphs when you need to introduce the reason/s in the topic sentences)because teenagers can learn how to manage their time between study and work. In addition, and they (use relatives to avoid repetitions)can get the (no article needed because the experience is not one specific experience but rather many different experiences) valuable experiences from a part-time job.