AFK

I love playing League but its hard to play continuously considering how long the game takes about 20-40 min. I live with my parents and my little sister. Sometimes they call me out and I got to be there for them. It may take 3-6 min to get playing again but I always get AFK bans. Now I have to wait 20 min of my life waiting to find a game in bots? Btw I don't play PVP often so I mostly play bots. I feel this game should have a minimum of 10 min ban for 5 games. And It's only bot, nothing too serious.