Signing onto new job tomorrow, but worried other places will offer more starting hours? Advice?

[Anonymous]

Should I bring it up to the first job hiring manager? If so, how? When?

I haven't received an offer from the other jobs, but the first is going to start me with very few hours. One of the others may start me with much more, but they also may not hire me at all. I don't know.

I already scheduled an interview with other 2 companies tomorrow afternoon, and ended up scheduling the paper signing for the first job tomorrow morning. I didn't think about the fact that I'll basically be hired and locked into that job after signing papers—I've never had multiple job opportunities in progress at once.

I know I need to cancel the other interviews once I'm signed on to the first job. I just don't know if I want to sign onto that job until I may receive offers from the others—but I didn't think about that. Now I'm already agreed to sign tomorrow morning.

Is there any professional way to handle this besides signing on as scheduled, canceling the other interviews, and asking for more hours once I'm trained?

[Jmmmfi4]

WHY ARE YOU LOCKED INTO A JOB? I DON'T GET IT

[Asker]

I'm scheduled to do paperwork tomorrow morning, and start training on Thursday. Isn't that pretty locked in?

[Jmmmfi4]

NO HOMIE I DON'T THINK ITS A CONTRACT... ITS PROBABLY LIKE YOUR PAYROLL AND TAX STUFF. THATS NORMAL WHEN YOU START A NEW JOB.

[Asker]

So i could sign up for the job, start training, and then if I get a better offer just turn in my 2 weeks notice after like 1 week of working there?

[Jmmmfi4]

YEP... SHOULD BE ABLE TO

[Asker]

Oh, well that's a relief lol. Thanks