CFL's turn on instantly unless they are in freezing weather. If yours don't then get better ones - walmart has really good ones.
The mercury vapor in CFLs is not very dangerous, it's elemental mercury which is not especially toxic, you need continuous exposure over a long time for it to cause any problems. One CFL is not going to do anything bad. How many CFLs do you break anyway? I've never broken a hot one, only a cold one that fell of the shelf, and cold ones don't release any mercury at all.
Buying an LED is an easier sell these days since the price has gone down, and the brightness has gone up, but I hope you did not avoid CFLs before now - that would have been very shortsighted.
The mercury vapor in CFLs is not very dangerous, it's elemental mercury which is not especially toxic, you need continuous exposure over a long time for it to cause any problems. One CFL is not going to do anything bad. How many CFLs do you break anyway? I've never broken a hot one, only a cold one that fell of the shelf, and cold ones don't release any mercury at all.
Buying an LED is an easier sell these days since the price has gone down, and the brightness has gone up, but I hope you did not avoid CFLs before now - that would have been very shortsighted.