Make fonts bigger for reading posts
50 seconds on how to change your profile default font for LARGER or smaller text throughout the website, including when reading posts.
If you want to skip the video, the instructions are below:
If you select Edit Profile and go to the "Site Options" tab, you can select one of 4 font sizes to be used throughout the website:

Just be sure to scroll down to the bottom of the page and Save Changes after you have made your selection:

This will determine the font sizes used for the forum menus and
messages, and the font size in messages you view unless the author has
chosen a specific size, which would overrule your default. Should have
fonts for all ages now.