HI Nicci! I love hearing about everyone's experiences & backgrounds!
Yes I do feel very lucky with the gym here, they are so encouraging! I'm 36 and working with what would be the level 4-5 in the US I think? (CR-3 - P2 here) and the girls range fom age 9-18, with the average being 10..! the parents are all good with it; they know I'm in a Sr category & their younger ones are novice or tyro so we don't even compete against each other. The coaches are fantastic too, they're the ones who encouraged me to train more & compete when I was like, "no I'm too old!!" but looking around the gym at the other kids I usually feel out of place, even if they're welcoming. Too bad you don't live closer by, you could be doing the 10 hr group with me! I'd love to train with more adults.
I train with kids too. There are actually 5 adults training at the gym I'm at but only 2 of us are consistent. The age gap between me and the older kids isn't too far (I'm 23 and they're 18-19) and I'm the youngest of the adults so I don't feel totally alienated. I especially don't feel out of place because the oldest adult is 65! If he can do it I most definitely can. All in all I'm at a good gym right now. I love being able to train 4 hours a day, 6 days a week and since it's open gym for the adults and team kids, we can work on anything we want.