As I showed in https://news.ycombinator.com/item?id=45413633, which I hadn't posted when you posted your comment, about 10–25% of mobile phone users have the Google Sheets app installed, because it has over a billion downloads. So it seems like your atypical personal experience is leading you into orders-of-magnitude errors.
I also use spreadsheets rarely, most recently three weeks ago, and often end up regretting it, but I do occasionally find them very valuable. I would find them even more valuable if I didn't know more powerful programming languages, which presumably is what you are alluding to with "write a real program".
I agree that cellphone screen input methods are clumsy. On the other hand, I've written probably ten thousand words of prose on this one, plus a fair bit of Python, Lua, and C, so a few spreadsheet formulas would hardly be an obstacle.
That's the download count from the Google Play Store. I don't think it counts preinstalls. If it's preinstalled on many phones, the number of Google Sheets users could be much larger than my number suggests.
I also use spreadsheets rarely, most recently three weeks ago, and often end up regretting it, but I do occasionally find them very valuable. I would find them even more valuable if I didn't know more powerful programming languages, which presumably is what you are alluding to with "write a real program".
I agree that cellphone screen input methods are clumsy. On the other hand, I've written probably ten thousand words of prose on this one, plus a fair bit of Python, Lua, and C, so a few spreadsheet formulas would hardly be an obstacle.