I unfortunately have to use my kitchen table its too low. I would love to have something about the height of my kitchen counters.
The managers should be able to raise the cutting table using concrete blocks or a riser of some sort. The question is do you work for a chain fabric store or an independent store. If you work for a chain the company usually has standards set for uniformity and appearances to the public. If you managers are saying there is nothing they can do that rising it is dangerous that would be my guess for their responses to you and your co-workers. They would probably get in trouble from corporate if they made changes.