Burdens of working as an airline pilot
This is a very broad topic and is heavily opinion based.

Vast majority of commercial pilots do love flying and that's the reason they go through the abuse by airlines. All GA pilots also love flying but either cannot afford the abuse or don't have time for it, so they just pay to satisfy this hobby.

So to answer your question, some of the burdens are:


High costs of training
Waiting a long time (2 years or more on occasions) before getting hired by an airline
Very low salaries in the beginning (several years)
Losing seniority (very often) when you go to another carrier
Staying away from home a lot
Very unstable industry
Many pilots eventually get bored and frustrated (regardless of initial enthusiasm)


Having said that, there are many many great benefits, too. The bottom line is that people only get into this career if they love it deeply.

The question you have to ask yourself is: Am I willing to undergo this trouble for my passion?



P.S.: The above holds true for the airlines and pilots in the US.