thanks guys for all the input. this forum has led me to meet some friends over the years.
I've had some members reaching out to me and have/will meet some and we've decided to try some collaboration.
Regarding the business, it's not the efficient process that I'm worried about. Technical issues are rarely a problem.
- Cash payment can be fixed by changing to credit card payment/online payment.
- Booking management can be fixed by using a CRM system which I've already built one and ready to use.
- Manual booking can be changed to online booking if needed such as using Calendly.
I deliberately hand-connect the girls and customers because the founder must be there at the start to see the problems and better understand how to fix them, and to see how much demand there is, why customers churned, etc.
I spent years reading Y Combinator, Paul Graham advice on the early stages of startups. "Do things that don't scale", and "you'd better have 100 customers who really love you than have 1000 customers who sort of like you". This has been the mantra that Paul / Y Combinator recommended which I take to heart. It's important to do things manually at the start before using any processes or automation. I've seen this and done this before for another business hence I didn't put any systems in place yet.