Blonde is easier to maintain with white hair. You don’t need to pre-bleach. All I use is a squirt on Roux Fanciful, in the shade called Sweet Cream, after shampooing and it changes my white hair to a soft blonde...and no harsh peroxide needed. Bet Donald does something similar.
Mine is white in the front and dark in the back so I still have to use 40 volume peroxide and toner. But I only have to do it four times a year!
I do use rinse sometimes between touchups though.