It is often said that the old days were more soothing, and cozier and easier than nowadays. But I think modern days are more comfortable and easy easier to sustain one's life because there are higher chances of survival than my grandparent's times, and because modern days are known to it's for its (it's = it is) varying advanced technologies.
To start with, I believe that modern days are much easier to live in than my grandparent's times, because the chance of survival has greatly enhanced due to the advent(등장) of advanced medical science and care. Modern day hospitals are more caring and have the ability to cure most of their patients, because there are less urban quacks and more professional doctors and nurses. And advanced medical science has found many ways to cure diseases that was once considered incurable. For example, diabetes used to be known as an incurable disease, but nowadays it is curable.
Secondly, I think nowadays are more comfortable because the world has become more faster because of due to a myriad of advanced technologies which are enabling enable us to live a more direct and guided life. By using modern technologies, we can access all the things we need nearly almost (nearly는 거리적인 개념입니다) in a blink of an eye. Through internet, we can search and glean information whatever through whatever information we want. *[But I think that the most significant development of our time from her time back then is the source of water and food. Because there is no need to feel worried or anxious about whether you can drink or eat, which is fundamental part of sustaining life. For example, my grandmother had to carry a bucket of water from a well just in order to wash her hands or drink water. But nowadays, various conduit has been positioned in our homes and we can use water whenever we want. And the food, we can order them by online by just clicking some buttons.]
*[]: 2nd body paragraph의 시작은 advanced technologies 덕분에 direct and guided life를 살 수 있다 로 하셨는데, [] 부터 point가 주장하시는 것과 떨어지는 것 같습니다.
In summary, as you can see, I strongly believe our lives are more comfortable than those of my grandparents due to advanced medical care and newly developed technologies.