I am wanting to raise awareness about epilepsy

I am wanting it to be mandatory for stores to have a warning sign on the entrance of the shop warning people that they have strobes/flashing lights operating in store.

Strobe lights don't affect everyone with epilepsy but can be a major seizure trigger for those suffering photosensitive epilepsy and the outcome of a seizure can sometimes be severe and require a ambulance

I was recently in a store, which had strobes lights on a display and the only warning sign they had was attached to the display itself... in order for me to have read that sign i would have had to stand in front of the strobes which by that point it would have been too late and I could have ended up leaving in a ambulance - thankfully I had my partner with me who spotted them well in advance and warned me ...if I was alone it would have been a different outcome 

I am wanting it to be mandatory for stores to have a warning sign on the entrance of the shop warning people that they have strobes/flashing lights operating in store.