I used to offer, but if I make sandwiches I make them the night before and put them in the fridge. (Or even make a whole loaf’s worth up and put them in the freezer).
He doesn’t like this approach and prefers his made fresh in the morning.
I therefore don’t make his lunch unless we are going out as a family and I’m making a picnic for everyone.
Occasionally he will take a buttered scone out of the freezer for his lunch, don’t think he’s ever tried a frozen sandwich.