Your laptop case for all intents and purposes is next in line to your laptop in importance. Everyone who knows the importance of a laptop should as a matter of necessity know the importance of a laptop case or bag. If you own a laptop case or bag without owning a laptop, you will not raise eye brows but if you own a laptop and you do not own a laptop case then I would wonder.
Some people have attempted to get by without a laptop case and many times they have found themselves regretting that decision. Your laptop is made of many different delicate components that MUST be protected from sunlight, humidity, rain, hard hits and damage from falling. Most laptop cases today can provide your laptop with the needed protection.
With the several options available in laptop cases and bags, it is almost impossible for you not to get any type of laptop case you want. Irrespective of the professional you are in, there is a laptop case or bag for you.
What I always do is use myself as an example. My laptop bag is a backpack type and it enables me carry my laptop safely alongside other tools I require for my job and still have my hands free. It also helps distribute the weight of my burden between both shoulders. If you consider that I sometimes have to carry quite a lot, you would agree with my choice of that back pack laptop bag. More so, my laptop is never endangered by the considerable load.
The bag is also highly padded. Times when it had fallen, I was never perturbed because the padding provided more than enough protection.
I would wonder if I have to remind a laptop owner to get a laptop case or bag. You should try to provide your laptop with adequate protection more so if it is important to you.