I have been in the business for over 28 years and it’s been good to my family and me. I can see why some people would first think SCUM, but actually 99.9% of the time you would be dealing with hard working moms and dads who have a kid jail on a first time offense.
There are many bail bondsmen in the US who are worth millions right now.
Grow the business carefully and slowly and always keep people around you who've been in the business for a long time.
I recommend it - the growth potential and general lack of fluctuation in the market beats many others.