Rip the grout out or paint it?

A couple of months ago, I stood in the bathroom and I was looking at the brown grout that lay between my white tiles. I was so tired of my floors looking dirty, and I had the bright idea to pull out all of the old grout and put in new. I had the grout bought and I was getting ready to do the job. I knew it was going to be a long and tedious job, but I also knew I couldn’t live with that ugly brown any longer. I just felt like my floors looked dirty. I was all ready to start pulling all of the grout out, when my phone rang. I almost ignored the phone call, but my curiosity got the better of me. I reached for the phone, and it was my son who owned the carpet cleaning business. He said he had a feeling he needed to give me a call and he asked what I was doing. I told him about the grout, and he laughed. He said his friend had told him about the brown grout and how he had tried to clean it, but to no avail. He was wondering how long it would take before I decided to do this job. I think he knew me too well. He told me they had some compounds that would allow you to paint the grout. If some of the paint got onto the tiles, he would be able to clean the tiles but it wouldn’t affect the grout. He sent the same young man to my house, to do the job. I couldn’t believe how clean and wonderful my floor looked.