I would very much not trust a 7 year old with a 450 USD device but you do you.

Honestly? If what you want is something to play “nintendo games” with the family? I would just go buy one of the pi-like devices or even go full sicko with an FPGA and then totally obviously legitimately purchase and rip every single game you want.

But in all seriousness, a small raspberry pi-like device running ES-DE is probably the genuine best choice for someone who wants to play the games of their youth without thinking much. AliExpress is nowhere near as good as it used to be but Retro Game Corps has reviewed a LOT of these kinds of devices over on youtube.

And if you want the portability? You can buy two (there are plenty of gameboy-like devices in that space) and still come in way under the price of a switch 2. Which, again, seven year olds are stupid and destructive.