Because it is giving you the option to click on where you want to write, its not a problem with your computer its just a naturally programmed function
cursor
Arrow keys manage the on-screen cursor or text insertion point. They are also known as Arrow keys.
Both: when over text that is selectable or editable, it's the I beam, when not it's the cursor arrow.
control key with holding arrow left click mouse and hold
Two common ways to select text are by using a mouse or keyboard shortcuts. With a mouse, you can click and drag to highlight the desired text. Alternatively, using keyboard shortcuts like holding the Shift key while using the arrow keys allows you to select text without a mouse. Both methods enable users to efficiently highlight and manipulate text for editing or formatting purposes.
Assuming that the cursor is at the start of the text you wish to highlight, hold down the shift key and use the cursor keys to progressively highlight the text; right arrow to go along the line, down arrow to do the whole line. Up and left reverse the process if you go too far.
In normal internet browsing and scrolling through a page, the mouse pointer appears as an arrow. However, when you point to a hyperlink, the mouse pointer appears as a hand.
Your insertion point can be moved by clicking with your mouse at the desired location in a text document or by using the arrow keys on your keyboard to navigate through the text. Additionally, you can use keyboard shortcuts, such as Ctrl + arrow keys, to jump between words or Shift + arrow keys to select text while moving the insertion point. In many applications, you can also use the Home and End keys to move to the beginning or end of a line.
Move the text cursor on the screen.Use in combination with other keys for shortcut keys. For example, pressing the Alt key and the left arrow key in Microsoft Internet Explorer will take you back one Internet page.Move a character in a computer game.Select text. For example, holding down shift and pressing the arrow key in the direction you want to highlight text.Move the mouse pointer using the keyboard instead of the mouse.How to move the mouse cursor with the keyboard in Windows.
If you need to select the entire document, you can do so with the mouse by following these steps:Move the mouse pointer to the left of the paragraphs in your document. The pointer changes to an arrow pointing up and to the right.Hold down the Ctrl key.Click the left mouse button.Another way to do this is to simply triple-click the left mouse button after step 1.
It changes into an "I" Looking icon. It indicates you can highlight the text for copying, If you hold it down and drag the pointer, a blue bar will appear over the text indicating it is highlighted. Right clicking will allow you to copy the text.
Well, usually when you press your right mouse button with the cursor over a writeable field a symbol that looks like | will appear and blink slowly. Thats what indicates where the things you type on the keyboard will appear.