Who would have a coat of arms?
These days you can have a coat of arms commission, which are not quite the same as old style pedigrees. If you have proved your relationship with an aristocratic family then you can have a coat of arms, but for this you have to submit proof, which ultimately involves a huge amount of research on your part. When you go back into the past, for example, the 15th and 16th century, only certain classes of society were awarded the coat of arms after thorough checking by King Harold. Many people claimed they had the coat of arms because it marks a higher status, which allowed them to get better marriages and acquire land as it was the main currency for people those days. These coat of arms were removed or extinguished when we moved ahead in time, and because of this, there is only a hand full of people who have coat of arms now.