No. While many students are younger, mature applicants also consider study pathways. What matters is whether the study plan makes sense in the context of your profile and your goals.
Yes. If you have a spouse or children, study may affect them as well. Family planning should be considered early, especially where timing, finances, and practical arrangements are involved.
Not always at the very beginning. It is often better to first understand whether study is the right route, then move into program and school selection with more clarity.
That depends on your goals, your budget, your education background, and your long-term plan. Study should be chosen because it fits your case, not only because it seems like the easiest way in.
In some cases, yes. For many people, study is not only about education but also part of a broader long-term plan. Whether it makes sense depends on the school, the program, the finances, and the wider immigration strategy.