Yes building a travel blog is a worth it in 2022 or in any year. People these days still travel and they will not stop going out and having a good time. If you can travel the world, you should have an YouTube channel and a blog talking about your trips for people to see and read.
Went I wanted to go to Las Vegas, I went to different blogs and YouTube channels to see how Las Vegas is and how to save some money and what are some things that my wife and I can do that we didn’t know about. Pretty much it does not matter where you go, there will be always someone looking into where you are going. This type of content can last a long time since people will be looking these things up all the time.
People these days love real life making your travels into a vlog is great thing to do. People loves seeing the world at the same time you see the world and vloging is the thing that you should do. Some people do not like to record themselves in public and I am the same way and if that does not bother then go for it. Right now in 2022 a lot of people are not traveling as much but if you can go out there and make some good content while traveling, then please do it.