Everyone has their own stories, and no two stories are the same. I know people that have been fine, and I know people that have been busted. Also, if you have ever come to Israel with your parents, you’re putting yourself up for higher risk. Trust me. When I made aliyah and I had to go to misrad haklita to find out if I had any rights left, they went through EVERY SINGLE trip I had taken to Israel in my life, starting with a family trip in 1994, which was about three passports previously. They asked me if I’d come with both my parents and siblings, and flew back with only my father. They asked me why I came. They noted that there were times that I’d come alone.
Also, I know someone who was in seminary who’s parents happened to have the exact same birthday, down to the year, and despite the fact that her paperwork was sent in with the entire school’s, misrad hapnim put a halt on her papers because they thought it was a mistake and wanted to see a copy of her parent’s birth certificates.
As someone said before, IF you go down the lying path, you better make sure that you memorize every detail you tell them, because if you mess that up, you better believe they’re going to catch and you’ll be in a heck of a lot more trouble then when you started.
If you’re coming for only one year, it’s not an issue. But if you have any thoughts of coming to Israel after you get married, or staying for a second year, or anything like, take into account the effects of your actions. You’ll have trouble getting onto a health insurance plan here, and they can catch you in your lie at any time. Just because you’ve managed to get out of the country X amount of times with no problem doesn’t mean that you won’t have a problem the next time you go.