I resisted getting a cell phone for many years. I can't tell you what year I finally caved, but I was the last person I knew to get it because I thought I really didn't need one.
At the time my opinion was that at work I have a phone and at home I have a phone with an answering machine and when I wasn't home and I didn't need to talked to anyone I wasn't actually with, while I was out visiting or shopping or eating ..... or whatever.
Eventually I got old enough and being a single woman, I thought I should have one with me every time I got in the car, just in case of emergency. I don't live in a particularly dangerous area, but the car could break down and you simply never know, so I finally got a flip phone. I didn't think I needed a smart phone, all of which cost too much.
One day my phone service carrier decided to go to 4g and the flip I had would not handle it, so they gave me a coupon for about $250 to buy a phone and when I went to get one, I finally bought a smart one that was on a great sale.
As you can guess, I now take it wherever I go. I mostly don't let it rule me, like answering or looking at it when I am visiting or the such. I do find though that when I accidentally leave it at home, I do feel like something is missing. Like you, I am use to just jumping on it when I need an answer to something... .anything.
I do still have a PC at home, so I don't have my phone attached to me and am sometimes far away from it that I miss a call. Fortunately, when I do get to it, it tells me who I need to call back ! 😄 I don't mind texting with my family on occasion, but I really don't like pecking out long emails or posts with one finger....ugh !