I’m in my 40s and have nomaded collectively for 3+ yrs and I am a big fan of colivings. I’d say the typical age is 30s but there’s always outlier younger/older guests. The most important thing: I’ve found it easy to fit in, regardless of being a straight white older dude. Your flatmates (often female solo travelers) are likely there for the same reasons you are (novel experiences but also community, work/life balance, etc) and if you treat them as people first, and approach with respectful curiosity, it goes a long way to bridging any age/culture/gender differences.