You might struggle to work on your own mobile straight after level 2 as it doesn’t cover colour correction or advanced haircuts.
Does your course cover barbering techniques?
When mobile, you often get 2 or more clients in one family as this makes it more cost effective for you. So, you could get the wife wanting a cut/colour, and then you can also do the teenage daughter or young son and husband needing hairdressing services.
Some mobile hairdressers charge too little initially and struggle to make money when factoring in their travel costs and time spent travelling between clients, so you need to work out your costings to decide if it’s a viable option for you.