Light switch relay

It's a single point of failure as it is, with a higher probability wired orm style. Headlight relays alleviate almost all of the risk. The extra stuff I'm thinking of doesn't change any risk, just changes where the failure would occur. 50 year old light switch, or new fuse block.

However, it's a lot of extra work for no tangible benefit. So, new fuse block with the switch fused instead of fuses post switch.