My only comment being to check local laws, and guidelines. While I live in an area with very liberal weapons laws ("a regular hunting knife or pocket knife..." are exempt from concealed weapons laws) a straight razor is considered a weapon under local case law. Therefore having a straight razor on your person in a public area may or may not get you into legal trouble depending on the perceptions of the arresting officer.
Plus I enjoy my quiet "Daddy time" shaves and do not necessarily appreciate interruptions. Plus, I'm still learning so I want to be able to concentrate on shaving and nothing else while I do so.