From my experience, a VPN is one of those things that seems unnecessary until you actually travel and use public networks every day. I started using one during business trips because I was constantly checking emails, banking apps, and work accounts on hotel Wi-Fi. It gave me a bit more confidence when connecting through networks I knew nothing about. I also liked having the same access to websites and services while moving between countries. Before choosing one, I spent some time reading about mobile options and came across
https://toggle.org/vpn-for-android, which explained a few practical situations that travelers often run into. I don’t think everyone absolutely needs a VPN, but if you travel often and depend on online services, it can be a useful tool to have available.