Fallout 4 was a bad sequel, with very few new features, a mostly non-existent story, terrible combat, tons of bugs, and a general lack of reason for being.

Source: https://metro.co.uk/2023/09/03/bethesda-hasnt-made-a-good-game-since-skyrim-in-2011-19437831/

His reason for being there is simple: “I like having a cuppa Joe with some happiness in the mornings.”

Source: https://gazette.com/life/social-cause-coffee-shops-making-coffee-and-a-difference/article_0a7041f6-8155-11ed-bb6c-7b728dfe8f4b.html

Wesley's canon reason for being such an integral all part of the bridge crew, however, gets a little more complicated.

Source: https://gamerant.com/star-trek-next-generation-why-wesley-crusher-allowed-bridge/