I still think of relays as a novelty, and I'm not that old, as all the cars I had growing up never had relays or if they did it was just the one like for the horn.
Mr Lucas has been a tad unjustly maligned, just as with any other, at the time ubiquitous, mass producer of product they build and deliver to a cost. Could be worse, like the Magneti Marelli stuff I've encountered in years gone past!
Current fleet: Triumph Dolomite Sprint '75, Daihatsu Fourtrak, Honda CG125, Yamaha Fazer 600, Shetland 570
Disposal fleet: Golf GTi 16v MK3 Anniversary
Past fleet: Triumph 2000, Lancia Beta Coupe, BL Mini Clubman, Austin Metro, Vauxhall Cavalier MK1 & MK2, Renault 18 D, Rover 216 GSI, Honda Accord (most expensive car purchase, hated it on pickup from dealer, was made out of magnetic metal as only car I've ever been crashed into, 4 times), Golf GTi MK3 16v x 3