What makes a good burglar

A good burglar is a professional thief that has taken the time to learn their trade and master the skills required to an outcome to is successful for them. Good burglars must be technically competent, and able to evade the authorities, as well as work with other people such as other burglars or fences (people who buy and resell stolen items). This kind of break and enter is almost never a random event and is carefully planned and thought out. Very rarely a target of a burglary is committed by a person who is not an acquaintance as professional burglars acquire inside information before had to lower the risk of getting caught. Some burglars will steal from a target multiple times because they have already gained inside information, see something of high value, and know the risks involved ahead of time, and know where things are located such as alarms. A burglars much like any other professional criminal will target places that have less public traffic. This is because there are less people to spot them in the act and takes a significantly longer time or someone to respond to any alarm may set off.
It is rear for a good burglar to work alone. So they need to be able to work at people to gain inside information, and to people to buy what they steal so that they can make a profit.
It is not just some random person who becomes a burglars. More often or not a person works under a professional burglar for a period of time so they can learn the tricks of the trade such as picking target, gaining inside information, technical skills such as picking locks, and having fences to sell what they steal to. As the trainee who is often family practices and becomes proficient in the skills required they eventually branch off on their own.