People of all ages and their motorcycles ! As someone who has been riding over 30yrs, and still am, I can say for sure I'm not doing it due to testosterone - but because it's a highly enjoyable pastime ! Also a great economical way to travel. I commuted to work for many years on NY parkways - even in winter - as long as there wasn't snow on the roads.
And by the way - it may not be apparent, because of full coverage helmets - but there's also more women riders than ever before. The word got out - it's way more fun to ride your own , than sit on the back.

Sure - there are men like the ones you describe - that might be doing it just for show . And others who have always wanted to ride, but perhaps had families, and/or wives that forbade them . Now that they're older, and maybe on their own, with disposable income - it's time for some fun. So, why not ? And many of the guys you see out there have been riding most of their lives - it's nothing new to them.

"Older people" are not at all what they used to be anyway - all kinds of things goin' on !

When I was a child watching bikes come past the house, I turned to my mum and said "Mum, when I grow up I'm going to be a biker"

She smiled at me and replied "Make your mind up which son, you can't do both."

I'm still riding and racing them at 61.

One of my dearest friends rides a motorcycle. He's also a violinist and I marvel at his wililngness to take such a risk.

I used to ride dirt bikes when I was younger. Loved riding a motorcycle. I still have a motorcycle license but, I don't own a street bike. Now, at 57, I'm actually thinking about getting one to ride here in the mountains. Maybe it's a mid-life crisis item? I can't say for certain. But, I'm not looking for a 29 year old woman to ride on the back.

I honestly have no idea what the draw is; then again, I'm not a motorcycle guy. One of my oldest friends has been riding most of his life and it's as normal to him as driving a car is to me. He loves the speed and power. With some older guys, who begin riding at a later age, I think that it's something they probably wanted to do for a long time but couldn't or wouldn't because of family obligations. So they finally got to a point where it became feasible and affordable. Just my speculation.

Some of us have grown up riding bike and it is as natural as sunshine. I started riding when I was 12 years old and rode up until 10 years ago. I stopped because of an inner ear problem that affected my sense of balance, making it really dangerous. Some of us are serious riders too. Not just weekends during nice weather. I have ridden upwards of 40,000 miles a year at times in blistering hot weather, frigid winter, rain, hail, snow, ice, and dense fog. On one of my jobs I rode roughly 1700 miles a week. So, not all those more mature folks you see out there are testosterone ads. A lot of them are, yeah, but not all.

Bikes are pretty expensive toys nowadays. I rode a bike for almost 20 yrs, gave it up because of the cage drivers running me off the road. Now I take the bus and have owned 5 Lincoln Town Cars, nobody is running a Lincoln off the road...

My motorcycle is my ticket to living in the now. In 10 minutes I am in another world. My senses are heighten. Barbecues smell wonderful, and scenery is colorful, the bends in the road are artful, and the wind at my face is faithful. I love the power, and the connection through the bike to the road. I feel more alive, and yet I feel the presence of death following closely. I do like the looks that women give, and with a pleasant smile I will return, to home once again.

I think motorcycles are great. If I could still drive, I'd want one myself.
I think a lot of guys who had them in their youth, give them up because a) they get married and wifey nags about it, b) they have kids and feel they need to be "responsible", c) they take jobs where riding doesn't fit whatever image they're trying to project.
After the wives are gone, the kids are grown, and their image no longer needs projecting, they just want to get back something they enjoyed. I realize it's not that way for everyone, but I've seen those scenarios play out more than I haven't.

They’re just trying to recapture their youth. Sort of like sympathetic magic.

Its called a mid life crisis, and its happened to a few friends of mine. Divorce motorcycles women.

Never had one, never been on one, don't want one.

Suicide machines?