Not everyone can afford a DSLR, specially considering it's not just the DSLR, it's the external flash, the lenses, the extra lighting, the backdrop, the tripod etc. It all adds up.
Don't worry about it, if you have an interest in photography then it really doesn't matter what kind of camera you have as long as YOU enjoy it. Just don't market yourself as a professional with a P&S(which i'm not accusing you of doing.)
You can get some really nice shots from a P&S, it just takes some practice and patience.