In our days every day more and more students of high school or even middle-age people use public transportation to attempt at school and work.
A very big disadvantage is that we contact very close with other passengers, so it’s easy to spend diseases and then to create a pandemic. Also in countries with high crime rate, there is a big danger of pickpockets waiting on bus or train stations to stole the passengers.
On the other hand, using public transportations is an easy and cheap way of moving all over the town. There are leaving every half or one hour so you have to choose the writing timetable to be as fast as you can at your work, school.
My opinion is that is good to use public transportation, maybe sometimes you will miss your bus and you will be late, but this may be cheaper and more comfortable using a taxi or go on foot.