Why are young healthy people with nonessential jobs being forced to wait a long time for the COVID-19 vaccine ?

Because there isn't enough for everyone immediately so they prioritize the most vulnerable people.

Orthodox Christian three hand signs are different than Buddhist mudras. Ecumenism = 263 heresies; each heresy leads to hell. Orthodoxy = the only true faith; Roman Catholics tried one cup - one spoon ritual and got sick with Bubonic plague; if heresy enters Orthodox monastery then monks/nuns will get sick with flu/tuberculosis (for instance); Orthodox churches who closed for COVID or had disposable cups/spoons or dipped spoon into alcohol are no longer brides of Christ (now they serve Satan and honor Satan's new COVID religion). Don’t go into UFO to be “healed” by evil demons; demons never do good. SSN is written as a barcode/QRcode; then it's put into a chip; chip is put into vaccine; chipped people are influenced (by super computers) to receive grey plastic card World Passport with no name on it (but when they stretch their hands to get it, gov't clerk presses secret button to administer the unforgivable green 666 tattoo by isotope rays). If you reject mark of the beast (by hiding within a 10-15 people group according to saints Gabriel Urgebadze and Seraphim of Sarov), then your direct ancestors go to heaven (according to saint Vyacheslav Krasheninnikov from Ural); forgive me.

Your risk of complications and/or death is low, and it's not essential that you get out to the workplace ASAP.

But all the people in a household where there's a high-risk person--the elderly, someone undergoing chemotherapy, people with asthma or COPD, etc.--will be very grateful if you'd continue to wear your mask and social distance until this thing is beaten.

They choose to wait in long lines.

Because you are not at risk or essential