User blog comment:Princessjamie1/What the loud house episode future tense about/@comment-24200891-20170701173859

Your idea sounds like you don't understand time continuity. If they traveled to future they can't meet themselves as older because they never got old.

I think of 2 options.

1. Lincoln writes Achievement Test of Destiny. His score doesn't satisfy him so he falls into depression with knowledge that he'll end working in Burpin Burger.

2. Lincoln regrets he's not a teenager because his elder sisters have fun. He imagines or dream how would his life look when he turns 13.