Will connecting everything to my personal router's WiFi resolve the double NAT issue?

I have not researched the newer consumer routers but it seems as if most only support such filtering with the router/layer3 enabled. Without the router and without layer2 filtering that loss of control is the trade off. There are content filtering solutions but again there is the additional cost monthly associated with them. Using the router to enforce the controls and having double NAT is the trade off. It would be great if only the NAT could be disabled but that does not appear to be a common feature.

I suppose there is always the option to build your own router using Linux. It takes a little time and extra work but it can be done. For many people that is just an option with a learning curve to contend with. Of the Linux or BSD options OpenWRT is hands down the leading contender.