Your dad is right ... scratches & audible pops were pretty much the way it was with LP's. The Stereo Magazines (Stereo Review; High Fidelity; etc.) used to advise you to make a tape copy of the LP and play that, because LP's were so easily scratched (usually after the first play). The LP was to be saved for special listening occasions. You were usually OK, unless the disc was really scratched up and then it was outrageously annoying. Also, LP's were warped beyond belief (RCA Dynagroove comes to mind) and there was not too much you could do about that.
Cleaning the LP's, the turntable, and cartridge helps. But if the record is scratched, it's scratched. With 180 gram audiophile records and + $1000 rigs, scratches may be less of an annoyance ... but now you are getting to the same place where you are with a cd player ... get a + $1000 cd player, for the best redbook sound and less digital glare.
I found all this way too frustrating and I gave up on LP's about 10 years ago and spent my time getting the best sound out of CD's.
Regards, Rich