In a word, yes. But not multiple routers, just something capable of segmenting traffic securely (or as securely as you can hope for...)
The precautions that you have used for years in a corporate network apply to a home network. You have computers or tablets that need access to your bank, your utility companies, your email and your family photos and then you have other devices that just need access to the internet. In other words, you need a protected network and a DMZ.
I run pfSense at home and have a VLAN for my sensitive workstations and another for those things that just need to access the internet. If I can, I even lock down the cameras and thermostat to the web site they need to get to. Using something like pfSense also lets me monitor where those devices are going to.