Sure it ain’t as easy as just using a console, but batocera on pi is ridiculously easy compared to most other solutions:
Download the batocera image
Flash it with raspberry pi image writer
power on the pi
connect a Controller
connect it to network
the pi will automatically appear as network share, just drag and the Roms
play
If you already have used a pi and disregard the download time this can easily be done in less than ten minutes. I know first hand using something like a Gameboy/DS is way more convenient, but compared to how long it took me to get the game running that came with my Xbox one that’s at least twice as quick (not even considering Xbox 360 games on one) so I’ll gladly take the time to learn how to setup and then do it