Hippie cc

I only have a couple recommendations maybe someone else will have some ideas.

Children
Realistic:
https://www.thesimsresource.com/downloads/details/category/sims4-sets/title/tie-dye-outfits-for-children/id/1331655/ -both
https://thesimsresource.com/downloads/details/category/sims4-clothing-female-child-formal/title/boho-dresses/id/1297723/

MM:
http://simmiesgalore.tumblr.com/post/173492055312/550-followers-gift-pt-2-the-second-part-of-my -female
https://mystufforigin.com/jacket-henley-conversion/ -male
https://jinskookie.tumblr.com/post/172464814541/meredith-dress-ver-2-random-patterns-base-game -female
https://jinskookie.tumblr.com/post/171062704536/child-shirt-dress-14-swatches-need-get-together -female

I would recommend perusing jinsookie's site because there were some looks that had maybe one pattern that could be hippie that I didn't include. I tried to give you outfits with more that one option from her.

Toddler:
MM:
http://storylegacysims.tumblr.com/post/172863061968/clearly-i-never-knew-how-badly-i-needed-more -unisex
http://onyxsims.tumblr.com/post/172812544643/download-over-heremore-a-small-little -male
https://mystufforigin.com/dress-vest-for-toddlers/ -female

Thank you so much, these are great to start with!