If you are considering to get into hiking seriously, then you need to realize that you will have to allocate time and money to the hobby as well. This is because hiking requires you to spend hours, and sometimes even the entire day to navigate across the trail, and then you will also have to spend money driving till the trail, buying snacks and other important equipment and gear as well. Now, in terms of hiking gear, you will have to invest in a proper bag, a water bottle, first aid kit, ropes, and then a proper outfit, which includes pants, hiking boots, and a proper hiking jacket as well.
No, you cannot be expected to wear a standard jacket when you are hiking because your needs completely change when you are hiking. You can check out different sports stores to find hiking jackets, or you can check out options for hiking jacket mens online in case you do not have the time to go to a store.
Now, a hiking jacket is different from normal jackets because it is supposed to be the perfect mix between breathable and insulated. Of course, winter hiking jackets are more heavily insulated and less breathable compared to summer hiking jackets since your body needs change when hiking in the two kinds of weather. Now, with summer jackets, you also have to choose between hiking jackets with hoods, and ones that are hydrophobic so that you have protection from the rain as well and so on. Ultimately, your choice in hiking jacket heavily weighs on a number of things like how often you go hiking if you have a preferred season for hiking, what is the climate like in the area that you hike, and whether or not you hike during rains and so on.