I use a paid VPN for my mobile wifi use, for the potential man in the middle attack. If you are worried about your home wifi getting hacked, then VPN is good for that also. (I'm not worried about that, but if a person has prominence in their community, it might be a concern).
The issues with using a VPN at home is 1) the speed is cut down. for instance with VPN by download speed is about 50 to 75 Mbps, depending upon the remote server. Without VPN, it is around 100Mbps. My plan is for 100 Mbps. 2) Some websites block access from VPN servers, which means servers that have multiple users. 3) Also when some sites use the 'I'm not a robot' check, if you are using one of the VPN servers, they subject you too an overwhelming number of photos of cars, buses, etc. It is a big pain.
The other thing some people use VPN for is to to watch sporting events that they would normally be blacked out from watching. It would take a little planning, as you know the game providers are wise to that, but some people do it.