I have my 10 year pin. I learned a lot in 4-H -- sewing, gardening, cooking. Altho I already knew how to do ythem, 4-H introduced me to new techniques. Especially in gardening with new pesticides ans plant varieties.
My son was a 4H leader while he was at Microsoft. His group built computers and donated them to assisted living facilities. Microsoft donated thousands of dollars in software as well as money for materials. The kids also learned how to write proposals for grants.
When I need to know something about plants I still contact the extension agency in whatever state I am in.
Also we all learned how to keep records -- neatly--
Mim