If you’re an occasional, low-level internet user, you may be comfortable using public Wi-Fi networks and/or campground WiFi. But remember that while ‘free,’ these are almost always open, unsecured public wifi networks.
These days, in most parts of the country, it is surprisingly easy to find decent internet coverage with the three major carriers. You can even find good cellular reception in some remote boondocking locations, where it’s less populated and therefore has less demand on the cellular towers!
You can use your smartphone and/or tablet to access the internet via the data plan with your cellular carrier. This can be a good option for checking email and social media, having FaceTime or Zoom calls, etc.