I’ve made half a dozen or so trips over the last few years, covering about 10,000 miles I guess, mainly in Europe but also west to east across the US. I think there are two things that have made it less common than thirty years ago:
1. As you say, the media. Hitchhiking will always have an element of risk, as indeed does any travel and almost any activity. The media loves stories of violence and murder; essentially, they make the best reality tv. Tell somebody that you are taking up rock climbing or horseriding, and they will not bat an eyelid. I don’t have the stats, but I’d be willing to bet that those activities carry a greater risk of death/injury than thumbing a ride.
2. Young people have more money, and travel (especially airline travel) is far cheaper now. This is simply a practical thing; I guess it’s good that there are more options. Personally, I would guess that many of my hitchhiking trips would have not been much more expensive if I had taken the plane instead. That isn’t why I do it.
For me, hitchhiking is not a means to an end; it is the means in itself. I know of no other way to travel with a destination in mind while keeping your mind open to happy chances or unexpectedly beautiful or interesting parts of a country. Most of all, hitchhiking is the best and perhaps only way to really get to know the people of the country you travel through, their concerns, their lives and their local knowledge.
From my drivers, I’ve learnt the distinctions of French brandy, how Polish labourers in Norwar really live, the lonely life of a US trucker. In my 100 or so rides, I’ve met a diversity of people and gained a wealth of stories I can’t think I would have required any other way.
I’m realistic about the risks – I accept there are some, but I am certain that they are worthwhile. We live in a society whose main fault is to cut groups of people off from another, creating insularity and ultimately fear… thus cutting people further off. Hitchhiking is as good an antitode as any, and I think we are seeing its resurgence as people become more aware of this.