Welcome
from a very wet Carnoustie
I agree with Lill - tiresome though much of it is, the regulations are there to protect consumers and livestock. We keep a few cattle and tbh, it's not too bad. CPH number, which we had anyway; herd number; tagging, but that's a once only and cattle don't seem to ship tags the way sheep do; movements can be done easily on line; herd register and medicine book.
Health issues like TB and BVD, your vet will keep you right.
If you aren't moving a lot of cattle around frequently, it's not hard - the hardest bit is remembering to do stuff because you don't do it very often.