Replying to A few edge questions

so ive skied probably 30 days on my PEs, and ive got two cracks. this seems normal enough for me, but how long does it usually take for you guys to start getting cracks?

also, part of my edge is dented into the ski and is making the base like bubble out. should i keep any eye on that for any problems?

can they fix edges at the shop if it gets bad enough?

one more: i was looking to get some wider skis for all mountain next year, but i dont wanna use them on rails AT ALL. Should my old skis be alright to use in the park if the are missing some edge? Like will i be able to keep and edge for jumps and stuff or will they basically only be good for rails?