Hippie chicks are hot, but good body hygiene is a must. Just don't be dirty and stink. Is that so terrible a thing to ask of another person? Don't get the wrong idea, though - I would happily lick a hippie chick's creampie till it is squeaky clean.
Not all hippie girls are or were that way. Being a "product of the sixties", a hippie myself, I bathed often. Like daily. Back then my hippie girlfriend joined me in the shower quite a number of times. We were squeaky clean always. Well, until we built up a sweat while fucking.
I knew quite a few hippy girls back in the 60s. They were into a lot of interesting things, but I never found that jumping up and down in bed was high on their list of pastimes. They were usually too busy looking for strange plants and mushrooms.
I've been fucking "hippie chicks" for 50 years, and I've never known that to be the case. I think you either haven't sufficient experience to have an informed opinion on the matter (much less make such a broad over-generalization), and/or you're just a misogynistic incel troll, recycling old John Birch pejoratives.