I used to be a schoolteacher; I left teaching and became a software engineer a few years ago. For the past two years, I've been building a solo Saas product, that solves a problem I spotted when I was teaching. I hope to launch later this year.
To answer OP's question, about a year ago, I told my parents what I was building. My mum is a teacher, so she's my first test user. Every time I talk to them, they ask how things are going, so I need to keep working on it so I've got something to tell them.
To join in on everyone else's roasting OP's business idea: OP, what are you offering your users that they can't get from typing 'coworking space' or 'cafe' into their search engine of choice? It's not enough to make something useful, it also has to be something that your customers don't already have.