Once my avocados weren’t ripe enough for a recipe I wanted to make on the day I was having guests over. I searched for tips to ripen or soften them more quickly. One of these tips was to wrap them in foil and bake them in the oven (the tip specifically said it would help with the texture and not the taste). Well, it took way longer than the tip said it would for the avocados to soften and they tasted like hot shit. It would have been better to just save them for another day.
It does come off as insecure when someone makes a culture they have little connection to a large part of their identity rather than just showing an interest in it, but most of the time it’s harmless and not worth making a big deal over. I would loosely define being part of a culture as fitting in with other members of it: ability to express yourself in the native language and understanding its nuances, familiarity with customs and mentality, not feeling out of place when around natives/locals regardless of your ethnicity or ancestry.
Only if I’m already in the shower to wash myself lol.
Smaller, recurring donations to several of the projects you use most often or whose purpose you most support is what I would do. You can browse for projects you might want to donate to from this list on codeberg or OpenCollective, or look for individual developers you want to support.
Personal recommendations: your Linux distribution and Fediverse instances of choice, LibreOffice, WireGuard, Archive.org, Anna’s Archive, Signal, KDE, Wikipedia.
It is custom in some cultures, including mine, to host holidays and personal events in your own home and visit friends and family in their homes when it is their turn. There may not be (or have been at the time) a good selection of restaurants, those restaurants might be expensive or exclusive, and inviting someone for a home cooked meal feels like the more personal and thoughtful thing to do. Some older generations have a hard time letting go of these customs without understanding that circumstances have changed (less family and community support, more options for eating out).
It can be exhausting having to regularly host and clean before and after large groups of people on top of all your other responsibilities and I can’t blame anyone for wanting to celebrate in a restaurant or somewhere outside the home.
What are his interests? I can make a few suggestions based on them. There is a search bar where he can filter for communities containing keywords he looks for. I also suggest browsing by All, subscribing to communities that interest him, and blocking the communities and users (sometimes it’s a handful of users sharing unwanted content around multiple communities) he doesn’t want to see.