You are not the only one that collects leaves and plants them, that I can promise you. It is something my mom is always doing. she collects stuff pretty much wherever she goes. we even tease her about it and tell her to stop stealing peoples plants LOLZ!
Both my folks are quite into gardening so I learned a lot from them growing up and I guess you could say that in some ways it has become one of my own loves now. It is quite surprising how many plants you can grow from a cutting or a leaf and most of the stuff I have growing now has come from my folks garden.
You are not alone, LOLZ!
I'm glad to hear I'm not the only weirdo of the planet. Picking up leaves, especially broken ones is the easiest and healthiest way of recycling and propagating plants. I love it.
I'm glad you do that too and that you've learnt that at home. I think teaching kids to respect nature is important.
Definitely not the only weirdo, LOLZ!
It is SOOOOOO rewarding when you successfully get something to grow that way!
Respect for nature is something which should be shared among all, no matter their age!