My workplace is giving old mini PCs to the employees. I put a linux distro on that and use it as a media pc. You can get them on ebay or similar for ~30 €, so it’s basically the same price as a TVStick. I reccommend getting a bluetooth keyboard as well.
If you want another stick then there’s also Roku.
Using a browser isn’t family friendly enough? :D The only thing that needs fiddling is the setup.