Hi, thanks for answering.
What worries me is that I was told to leave 1 cm from the border of the fabric to the sewing machine steam line. So I wonder how long would it take for the fraying to "eat" the seam line.
It happened to me with some costumes I made, and I lost of the job invested in them. I have heard there is liquid, like a glue, that prevents fraying, but its not sold here in Ecuador.
the pink solution seems like a good option. I will buy a pair of zig zag scissors. THANKS!
Sofia