Is a old leather halter safe for horses in field?

A leather halter is much safer to use in the field as it is much easier to break if your horse gets its halter caught on something.You wouldn't want him or her to get caught then panic and have a nasty accident! You can buy field 'safe' halters that have velcro or rubber instead of metal these are desined to snap should your horse get stuck on something.The fact the halter is old doesn't matter just use a newer or nylon one for leading your horse in' your horse doesn't care about appearence.