be, or may desire to become, engaged in tKe same calling of selling liquor. State ex rel. Galle v. New Orleans, supra; Chicago v. Netcher, 183 Ill. 104, 114, 55 N. E. 707; 30 Am. Jur. 279, § 42. Therefore, the concrete question remains for determination whether the requirement of § 462f that a person must be an elector to become a permittee is arbitrary, unreasonable and discriminatory, thus violating the plaintiff’s constitutional right to the equal protection of the law.
“The discriminations which are open to objection are those where persons engaged in the same business are subjected to different restrictions, or are held entitled to different privileges under the same conditions. It is only then that the discrimination can be said to impair that equal right which all can claim in the enforcement of the laws.” Soon Hing v. Crowley, 113 U. S. 703, 709, 5 Sup. Ct. 730, quoted in State v. Cullum, 110 Conn. 291, 294, 147 Atl. 804. But no discrimination is involved where there is “some natural and substantial difference germane to the subject and purposes of the legislation between those within the class included and those whom it leaves untouched.” Fountain Park Co. v. Hensler, 199 Ind. 95, 102, 155 N. E. 465, also quoted in State v. Cullum, supra, 295. The discrimination incident to § 462f is between the class of citizens who are electors and citizens who, like the plaintiff, are not. The decisive question therefore is whether there is such difference between these classes as satisfies the rule just quoted. A. & P. Tea Co. v. Mayor of Danville, 367 Ill. 310, 316, 11 N. E. (2d) 388; see also State v. Zazzaro, 128 Conn. 160, 165, 20 Atl. (2d) 737. That there is this substantial difference is manifest upon a comparison of the minimum requirements essential to becoming a citizen with those requisite to becoming an elector, and a consideration of the benefits reasonably to be antici