In my experience it's incredibly difficult to tick all the boxes required to get a band off the ground. The members have to get on with each other, have the similar musical tastes and levels of commitment, be as competent as required, have enough spare time, sympathetic partners or family, be able to supply decent levels of equipment, be able to travel around with their gear etc. etc. etc. The list goes on and on. You then get into the realms of what compromises each is prepared to make and how fairly that can be resolved. It is a complete nightmare. I've even been in the situation where all of the boxes were perfectly ticked apart from the singer, who was a brilliant front man, being a serial substance and alcohol abuser with a gambling addiction too,who quickly sank the entire project.