The word ‘traveller’ can refer to a number of different groups of people, so it’s hard to give a definitive answer to this question. However, in general, the answer is no – travellers are not inbred.
There are a number of reasons why people might think that travellers are inbred. One is that travellers often live in close-knit communities, and so people who are unrelated may appear to be related. This is because they see each other all the time and so they become familiar with each other. Another reason is that travellers often marry within their own community. This is because they want to keep their culture and traditions alive.
However, just because travellers marry within their own community, it doesn’t mean that they are inbred. Inbreeding only happens when people who are closely related to each other have children together. This is not the case with travellers.
So, in summary, travellers are not inbred. There are a number of reasons why people might think they are, but in reality, they are not.