I have been on numerous Spring Break cruises and although there are MANY children onboard at that time (over 600 children last Easter on the Radiance) I did not find the children to be disruptive or unruly for the most part (Of course I am a former elementary school teacher - so I may be more tolerant than many). Spring Breaks for college students/and many East coast schools starts around March 9 this year and then continues through to Easter. The highest public school traffic is the week before and the week after Easter (April 20). You will have numerous children aboard most of those sailings. I found, at least on Royal Caribbean, the staff worked very hard to keep the children in tow and held parents accountable. As a single mom the date of your cruise is probably dictated by your child's school calendar anyway, so I would suggest you continue with your plans.