Having been a punter for 20 years, I have a list of reliable/dependable go-to ladies and another list of randoms that are entertained when there is nothing available off the regular menu.
I've observed some of my fav girls leave the circuit to start a new life (eg family, steady bf etc), some come back and others disappear into the twilight forever. But there are some that solider on, from bright eyed fresh 20 somethings to worn out tired 40 somethings.
A recent experience of my of my fav regular involved an obese client that fell in her tub and couldn't get up so the police/fire department had to come in. The guy did a shit too which she had to clean up after all was resolved. Sadly she lost time, money and ended up with a filth-turd collection to clean up while dry retching. She said at 44 years of age she literally can not believe the 'shit' she has to deal with to pay the bills. I felt a little sad at knowing this lovely lady that brings me joy has to deal with so many clients on a weekly basis that bring her distress.
Another of my fav was telling me she can't get clients unless she offers more as a older escort. Recently she had to agree to water sports, being spat on and hardcore BDSM to keep the cash flowing.
The older escort these days have not just younger girlies to compete with in addition to the sheer volume of escorts flooding the market (at least in NSW). Look at the Private Girls website, at least 80% more girls than just 8 years ago.
So my advice to the older escort is built a loyal client base, save/invest your money well and get out before you burn out physically and psychologically.