This is a cute topic :)
I started using iNat at university for a class project, and brought it home to my Dad, who now uses it often. We use it a lot on the farm as a public engagement tool (annual bioblitzes), but also to document what species we see and to plan land management. For example, it helped us identify butterfly species that are present and absent on the farm, connect them to host plants, and identify where those host plants most often grow. We’ve now incorporated this knowledge into our wildflower seeding locations and a larger landscape rehydration project. So my Dad loves it! My mom doesn’t use it, but she will ask me to ID things she sees in the garden or on walks. My fiance has used it some, but is more likely to accompany me and help me document what we see on our hikes for use on my own account (and to buy me wonderful gifts like field guides and my camera <3)
I think the most interesting thing about my (i)naturalist hobby is how my grandparents and my future in-laws perceive it. My grandparents don’t have the internet or smartphones, but my grandfather is a classic Canadian outdoorsman and my Nan has a dinky point-and-shoot. I have long conversations with them about what has changed in their 80+ years of fishing, forestry, hunting, birding, and gardening in our village. They will show me the odd thing that they can’t identify, sometimes keeping bugs in their freezer for me for months while I’m off in Australia. We can share knowledge and learn from each other, me with a more formal education and access to internet resources like iNat, and them with far more practical knowledge and a hefty stack of outdated field guides. I often end up learning more from them than the reverse. My grandfather’s side of the family all lobster fish still, and sometimes my cousins will ask me about strange things they see because they know I’m interested, which has led to fun experiences like delivering bottles of sea slugs to the fisheries department.
My fiance’s parents live adjacent to this stunning and sadly rapidly shrinking piece of swampy bushland in NSW, although they don’t understand how lucky they are. When we last visited them for a few weeks, I spent everyday wandering around the bush and taking photos. My FIL is a novice gardener, and he showed me pics of all the reptiles and birds that he’s seen in the garden. My MIL took us whale-spotting on the coast and was super excited about it, and wants us to take a boat tour the next time we’re up. They had to move around a ton with the military until recently, so I think now that they have their own place it’s a good time to start appreciating the local wildlife. They aren’t big nature people, but it was a way for me to connect with them, because everyone has a certain aspect of nature that can get them excited. Often they’ll ask me about new birds that visit their garden. In-laws are always a bit of an unknown, and my naturalist hobby has fortunately been a winner for getting to know each other :)
Very long response, sorry (clearly I’m procrastinating a report for work…)! I think I’m quite fortunate to have supportive family on all sides, and to have grown up in an environment where nature connection is the norm. I know not everyone is as lucky, and when my fiance was a child, my in-laws didn’t have much capacity to be curious and exploratory. For anyone that doesn’t get as much support from their family in their hobbies, I hope that this changes when their stressors and circumstances become different :)