I'm not familiar with games for the Switch but the DS had a lot of games that are easy for younger children to play. The trouble is that they get horrible revi

I'm not familiar with games for the Switch but the DS had a lot of games that are easy for younger children to play. The trouble is that they get horrible reviews because they're targeted at kids but kids aren't the ones reviewing them. Fortunately the bad reviews mean these games are usually half the price or less of a AAA game like Mario so you can take a gamble and buy a couple. I recall Mario Party, Rabbids, and Carnival games being popular games for my kids because the mini games were usually pretty simple and easy to understand. The games themselves develop coordination, timing, and problem solving skills that are helpful for kids. The Animal Crossing games are perhaps a little beyond a 6 year old but they're definitely worth while. The require reading comprehension, resource management, and a bunch of other skills that require a child to think.