I am doing something similar with Girl Guides, but something I haven't seen mentioned above, is that the Geocaching Terms of Use, the ones we all blithely tick we've read, say:
which complicates the Girl Guiding Geocaching interest badge - Girl Guides are aged 10 to 14*. The reasons I'm doing this with Girl Guides are partly because there's an interest badge and partly because we were given a trackable to return to some Girl Scouts in VA at an international camp in summer 2019.
We (my daughter and I) set up some caches to teach the girls locally last October, planning to run a session in the autumn, but were locked down and back on Zoom before the session happened so everything was stalled. I finally ran a geocaching session this month, a substitution as we couldn't do the mad outside games we had planned safely on wet grass, and that session had been planned and risk assessed and the caches were in place. In that session we managed to launch that trackable. finally, 2 years later. The caches my daughter set up have been there for most of a year by now, and have been collected a fair bit, 62 finds on the one that I just checked, as easy starter caches for all the newbies during lockdowns. I totally agree that the more interesting caches are more fun, but we all do start somewhere, and some easier starter caches are a good way to introduce geocaching.
To work with the girls and not expect them to have accounts, I set up an account in the name of the Guides group and let them take it in turns to log finds. They did love it and I was asked if they could do it again. As we had so few girls present as so many were isolating, I am planning another session as a voluntary badge session, to give those who missed the session a chance to experience geocaching, provide a second chance. At that session to allow them comply with the badge, we'll place a cache. My plan is that when the inevitable happens and they move on, I'll adopt the cache and the trackable so that they do get maintained in the longer term.
* I am also taking this up with Girl Guiding as I am not sure that the person wrote their badge had much experience of geocaching; I am concerned about some of the requirements, after getting some 18 months of experience of geocaching myself [400+ finds (limited by shielding and lockdowns), 20+ hides and creation of a couple of Adventure labs].