1.can anyone get a handgun
Yes! Anyone can get a muzzle loading pistol, a pistol made prior to 1919, a pistol of special historical importance or aesthetic beauty (like the gold plated, engraved P210s for instance), a pistol for signalling purposes or a pistol for the humane dispatch of animals. Like any firearm in the UK, you must provide good reason for having the pistol in question. A muzzle loading pistol could be used for target shooting, but a jewel encrusted revolver would only be allowed for serious collectors. Also, firearms dealers, firearms manufacturers, the police, the armed forces and anyone else with special permission to do so (such as movie prop companies and museums) can own all types of pistols.
2.Are thier alot of gun owners in the UK
About 650,000 in total.
3.Does the public frown gun ownership
In general, yes.