I'd say it's 20 - 80

Everyone has their reasons as to why they hobby. People been hobbying since the cavemen.

Convenience to add a few other reasons.

I'm a middle aged guy and in todays world if you want a hot young girl then one way or another you have to pay for it. It's funny.....when I was younger I wanted the older girls and now that I'm older I'm only into hot young girls....LMAO.....Go figure!

...I'm horny & alone ( which isn't the same as lonely). I'm not interested in looking for an SO. I won't resist if one comes along though. I won't have a relationship without enough sex to satisfy me either so I'd break off the relationship if there wasn't enough because I wouldn't see providers while in a relationship.

Because he can......Why ask why?

Literally have addiction as the root cause. Just my opinion.

Some become friends too - that makes it even better!

I would agree with this. When I'm stressed, I'll call someone!

He answered, "I don't pay women for sex, I pay women to leave after sex"  Can't argue with that.

Boredom overcome by reading book, going to movies

Is it just my mood today or does the OP strike anyone else as someone trying to understand why a SO "cheated" on her or a loved one?  If so, imho, there is no single answer and even those answers will change day by day or provider by provider as the case may be.  Hence, I think 1woody's is "Spot" on.

and appetites vary

For me, it is that occasonal chance to get away, go out on the town with a great looking woman on your arm, someone new and exciting and somewht mysterious...  It is like that first date with the sexy as hell girl you always lusted after and finally have your chance.  The opportunity to re-live your youth even....  It is really just a fantasy that gives you a chance to escape for an evening.  I prefer a full evening or maybe even an overnight...it is just a sweet escape....and a treat for working so hard 99% of the time!

Just to be balanced, and I'm sure that you neither want nor need my kudos - but this post absolutely nailed it on the head for me also.

It may not be the Hapless bunch of guys that we would think.... ask the ladies?? maybe a different answer.lol.  I've seen the guys at M&G's...my GF did also, half of them would "fit in her WheelHouse" We actually saw one from the last M&G in a restaurant the other night out with some "friends"... No words, just a silent/ discrete nod of acknowledgement from a few tables over. Keep it moving... Nobody's business in the street.

Of needing to have your ego massaged, horniness, loneliness, vulnerability, adventure, delusion, machismo, variety, need for intimacy without responsibility or strings attached, ability to be absolutely free to express one's self sexuality without someone making judgments or keeping a "tab".  Men don't pay providers to have sex with them.  Men pay providers to be able to walk away after having sex with them.