My opinion on all of this.
Don't go straight to an jet airline. Sure the money's better and you'll probably need it to service the debt the flying school's convinced you to take on but you'll be bored within 5 years.
Take your time with learning to fly and don't amass a huge debt that you'll be a slave to. Get some piston flying in if you can. Then jump to a turboprop and do a variety of flying on that. Have some fun and be brave enough to shift locations. Go to Scotland. Go to Africa. Where ever. Get some real flying in and have an adventure.
By then you'll be seasoned enough to know what flying a jet's all about from A to B. You won't be frustrated as such because you'll know what the other flying's like. Good and bad.
Find a job that challenges you every day and has a good range of short, medium and long haul options. Find a new aircraft to fly every 5 or so years. That'll keep the boredom away. Also I get plenty of time at home and the money's pretty good.
So, for all the reasons above, I love my job. (Even though I am on standby in Luton)
Unfortunately, the above career path isn't sold by the FTOs in Europe. Nor do many recruiters understand the "piston/turboprop thing" and think you're inferior because you're not in a jet....