[tnli]

Assuming you can keep your customer queue sufficient at all times, and that your clients can come when you are open.

Most likely this means a location that already has a high throughput of potential customers and that also most likely means a place that has high rents.

Sure, if you already have a place, like an extra room in your house, and you manage to establish yourself on the area. But even then you might find out that your first client wants to come in at 7 or 8 am, to get ready for whatever work thing they have that day, and the last client wants to come in at 8 pm, because they can’t earlier.

[strogonoff]

By the sound of it barbering resembles consulting a lot. Being in a lively area could help find some customers at first, but once you have established relationships with customers that value you specifically you can probably set up anywhere.

(And if someone wants to come in at strange hours for important work appearances, I’m sure they won’t mind being charged double the price either!)