You would, but if you are looking into corporate law, that wouldn't be a good route to go. "Corporate" law is business law. Most of the corporate attorneys I know have their undergraduate work in business or economics. A few of them got their MBA before going to law school. Make sure you understand what "corporate law" is. I can tell you that "corporate law" is NOT just working for a big company. It often entails mergers and acquisitions, and deals with a lot of accounting and business aspects. If you want to become a corporate attorney, a legal studies degree is NOT what you need.
Depends somewhat on the Province. There are a lot of requirements regarding contents and execution.
The law surrounding wills is extremely technical, and there's frequently no recourse for technical deficiencies. If you get something wrong, then the whole will might be toast. Or worse, it might be arguable, in which case your estate could get tied up in litigation for years, and the only ones who win in such a circumstance are the lawyers.
And there are two ways in which home-made wills and/or codicils can...and *do*,...go wrong. First, a home-made will, whether with a 'will kit' or not, is far more likely to have substantive errors, including grammatical and punctuation errors which change the meaning of a clause. I've seen even simple distributions botched very badly - in case a testator inadvertently wrote two of his kids out.
The second way is by technical deficiency. I once saw a will which was done using an online will kit. The testator even ran it by a law student friend when doing it, and was told that the will had everything he needed...
...he then signed one witness field, put the date in the second witness field, and had a single witness sign in the field where the testator would normally sign. Only one witness. This is a technical deficiency which renders the will completely invalid. And so while the will sets out a very different distribution of assets than would result from intestacy (in fact, the set of beneficiaries is completely different), the estate has to be distributed under intestacy, and his intended beneficiaries are out of luck.
Another common one is using beneficiaries as witnesses - after all, if they're close enough for you to trust them to witness your will, you've likely left them something in the will. But such a gift is presumptively void.
There are more major red flags than I could list off, and so I could never suggest that it's a good idea to do a will at home.
Even if you don't do something that completely destroys the will, a good properly-drafted will is going to have clauses which makes the administration of your estate easier - legitimacy clauses, powers of trustee clauses, minority clauses - all sorts of things that you wouldn't think of just putting together your own will at home, and which a will kit may or may not have.
And there's significant value added in having given instructions to a lawyer, because a will made in a law office is better positioned to withstand a challenge based on incapacity or undue influence, because of the process that good lawyers will use and the fact that they will document the instructions, etc.
The bottom line is this: Estate litigators *love* home-made will kits. That's where they make their money.
For what a decent solicitor will charge you to put together your will, it's worth the peace of mind of knowing that it's done right.