A number 1 will show your receeding hairline to you because it's part of you and you're aware of it. To others it's short enough, if they do notice you're receeding, for them to see you've embraced rather than hidden.
When I did have a good head of hair (oh those days) I went through a period of shaving for fashion and I always preferred a 0 to a 1 as I found a 1 had too much of a shadow but it took me time to get used to it. If you did want to take it all off plan a weekend that's quiet and do it friday and by monday you'll have some fluff. It'll give you a chance to get used to it and see if you wanted to go permanent.
for someone with concerns about their hairline getting your clippers out is such a big thing, so well done! Don't rush or push yourself and do it at your own pace.It's very easy for people who have a full head of hair to say just do it, but they never fully understand that once your hair starts to receed, shaving it off at any grade is a big thing. You can't just grow it back if your receeding or balding so dont rush towards any decision. So you call the shots, go with what works for you and what you feel helps your confidence.
A lot of people don't look back when they do it because it was the right time for them. before it wouldn't have been
