I think its not illegal but more of respect to the one who is first on the spot. If you would pursue that, keep in mind that it would be a neck-to-neck competition.
it would be stupid and doomed to failyou obviously have not prepared a business plan. - you have instant competition right on top of you - there will not be enough business to support both of you and since they are already there, they probably have loyal customers and will they will probably survive better than you since they have income from the - Nail business also - you will probably not make enough money to pay yourself anything IF you even get enough business to pay rent and utilities (not likely)what do you mean same store front ? Do you open your front door and they are in the same ROOM as you or do they have a place right NEXT door?
Sure. Haven t you ever driven down a street and seen a Ford dealership next door to a Chevrolet dealership next door to a Honda dealership? It s called competition.