I lived in San Francisco during the Summer of Love and was a "weekend hippie" but I was only in it for the sex and drugs- the actual philosophy never made much sense to me.
The paradox of the hippie movement was they wanted the freedom to do what they wanted yet depended on society for their welfare. I felt like if you had to depend upon anyone, Gov't or not, for your survival then you weren't free at all- you were a subject of that provider.
We have that "hippie spirit" where I live because marijuana cultivation is legal, and every harvest season we're flooded with migrant hippie-types coming up here to work as trimmers for the pot growers. As a result our social programs are overwhelmed, which illustrates the flaw in that philosophy- we have givers and takers, and that group were takers who, in hindsight, left a small footprint with no real value on America's history.