Placing a certain arrangement of paths is quite time consuming, but it's worth it. There are a lot of different ways to do paths. For example, you could blanket your entire town or half of it with different paths..and the pros are an amazing original town along with the feeling of price and accomplishment once you finish. Also- you'll have a lot less problems with weeds. (I did this once, it took approximately two hours or less, but if you watch a movie you've already seen (mean girls, for example. I've seen it so many times but I'm never tired of hearing the audio of the movie) to keep your mind occupied, or listen to music. There are a lot of cons to this though :/ like less flowers growing around, the inability to shake fruit off trees (unless you remove the paths then redo them when you're done), hitting rocks for coins, finding fossils, etc) but this problem can easily be lightened by just doing this for half your town. The second option is just finding cute paths (specifically in rows of two or three). You can find some really cute qr codes for paths on tumblr and pinterest.
You can either use these paths to connect "special" parts of your town like the coffee shop, town hall, re-tail and train station, or you can connect all the houses together. Of course, you'd have to remove the paths if the villager leaves, but it'll just take a quick minute to remove that one path branch. What I did for my town was I set a fairy tale theme, meaning my town hall is fairy tale, my house exterior, and soon enough, my train station. I didn't want my paths to look out of place, so I went through tumblr and found cute fairy tale paths to go with it all (more like an alice in wonderland theme for the paths, but the general colors still match). Then I just added a line of bushes and flowers along the paths to outline them and add accent.
(Tip : If you choose to use bushes to outline your paths, place a flower every two bushes. The mechanic of the game is you can't place a certain amount of bushes in a row. It's to prevent the mischief of trapping other people, but the flowers shouldn't make a difference in how they look. If anything, they're more of an advantage. Instead of walking around the bushes to get through, you can just walk through the flowers)
It's not exactly a hard task either, it just takes up a lot of time. As I mentioned though, you can make use of the time by also re-watching old youtube videos or movies. I guarantee you won't regret the time you used on placing the paths though. Just experiment a little with the bushes and paths together. From my opinion, paths just seem naked without bushes to outline them. I hope this helped 0u0