I also thought about doing lashes extensions mobile thinking I'd be more likely to get business as they don't have to come to me. However, the environment that the treatment is done in really makes a difference to the outcome and how long the lashes last. For example, if their house is too dry and hot the glue may not set making it difficult to make a bond. Or if the room is too humid the glue will cure too fast and make brittle bonds, this means they won't last very long. With mobile you can't control their house, unless you took a fan, humidifier and dehumidifier with you. You could do the treatment at home, that way you keep costs low as you don't need to pay rent in a salon? People will come to you if you are active in promoting your business online and use introductory offers?
I've been researching for the best training too. I was going to go with Nouveau lashes as they're more brand name but after looking at and messaging a few local places too, Im going to go with Flirties. Their training seems quite affordable and the starter kit is quite full compared to some. I've read through lots of posts and their name seemed to come up the most and were always highly recommended. They have trainers all over the country. You can search on their website for your closest trainer. You can also go on @flirtiestraining on Instagram and they post about their training and trainers so you could find someone off there. Good luck!!