Although his fondness of Muggles and his good relationship with Dumbledore, Newt was raised in a magical, old, pureblood household, following customs and traditions, learning their beliefs and family specific spells, potions, rituals, etc.

British Pureblood Wizarding views/beliefs for:
- how Magicals don't really discriminate on sexuality
- like commenting on how muggleborns and muggle raised have more issues with sexuality considering their exposure to muggle prejudices
- possibly the capability of conceiving through potions (male or female)
- maybe USA don't have this because British pureblood a are typically reluctant to share family secrets or its too conspicuous to have pregnant males walking about for the secrecy (?)
- pureblood etiquette, the really formal traditional politesse
- common pureblood habit of marrying cousins
- some magical beasts, like puffskeins, and other beats used for pets or transportation
Etc.

Pureblood customs/traditions like:
- winter solstice instead of christmas
- Samhain instead of Halloween
Etc.

It'd be interesting to see the differences between the British purebloods and the American magical society.