According to Wikipedia, an obsolete occupation is “a category of jobs that have been rendered obsolete due to advances in technology and/or social conditions”. Many jobs that our grandparents and great-grandparents did for work no longer exist. This is a sign of progress; society has changed and technology has evolved like never before.
For job seekers and people considering a career change, it is important to know which professions may become obsolete in the near future. Nobody wants to start in a field that is on its way to extinction. Many of today's jobs did not exist 10 or 20 years ago (e.g. social media analyst, application developer, content creator etc.).
Here is a list of jobs that few people have:
Door-to-door salesmen
File clerk
Chimney sweeper
Scissors and knives grinder
Milkman
News street vendor
Here is a list of occupations that are likely to disappear during the next decades:
Travel agent
Retail salesperson
Journalists only for prints (newspapers and magazines)
Postmaster
Postal mail sorter
Cashier
Librarian
Telemarketers
Broadcasters
Although the prospects for these jobs don't look good, it's not bad news. Think of all the jobs that aren't even invented or reinvented. It is not necessary to be nostalgic about the "good old days", because progress is inevitable.
Remember that transferability and willingness to learn will be in great demand in the future labor market.