You could but now you will have an additional switch to worry about switching off. As well without the relay your driving lights could be on when your headlights are at high beam. Why not wire in a relay? They are inexpensive and don't take a lot longer to install.
My 2 cents


1970 EV2 Barracuda Hardtop
1970 FE5 Barracuda Gran Coupe Convertible
1969 B5 Dart GTS 383
1968 TT1 Barracuda Convertible
1997 Ram SS/T
2008 3500 Ram Diesel